#most impossible
1 messages Ā· Page 2 of 1
no
alr
now
"if x is an improper subset of y, then x = y"
its correct right
bcuz improper contains all
yea
ok now ven diagrams and union and intersection š
time to read alot of yap sighh
lol
wtf are non disjoint sets
for $A={a_k}$ and $B={b_k}$, where the $a_k$ and $b_k$ denote elements, we have that $A\cap B$ is where $a_k=b_k$
sets that have at least one element in common
flying green people eater
yes, if the intersection of two sets is non-empty, then it is non-disjoint
the union is everything in both sets?
in notation, if $A\cap B\notin\emptyset$, then $A$ and $B$ are non-disjoint sets
flying green people eater
yes
whats the uh "e" and "0"
the "e" means in, and the "O" means the empty set
uh, idk about that
yea ok
"the universal set is the set that contains all elements under consideration. Every set is a subset of the universal set"
ohh
the universal set is what could be
and the union is whats in both circles
yes yes
wait uh im confused
so A = (15) and B = (13)
U (13)
but in the venn diagram it has uh 15-y for A
y in the intersection
and 13-y for B
and 2y in the "box" on the outside
send picture
cant sadly
my phones broke E_E
wait ill draw it
uh
the u at the top corner is meant to be (30)
lol
.
i havent done subsets
and im trash at venn diagrams
and i canāt remember some set notations
so im pretty much no help here š srry
and anyways dw about that
ye
i hate all that stuff it bores me rah
pure is where its at
pure??
if i can do the questions sure but no promises
yeah go for it send me questions
i can help
make a new thread and ping me
this is your friends one
make one and ping me in it and send something for me to teach/help with
other acc is ur alt right
i feel like thats the case too but ion wanna assume
na we are irl friends in the same class
yo so when do u feel like doing algebra
i can do it rn
oh uh
i guess ill start with like the easiest stuff from algebra
lemme find stuff then
uh do u have questions u could give or
which algebra specifically
quadratics?
hm lets start with the basics ig
addition and subtraction right?
tho quadratics is smth def coming up on the test
ok so
i think that u
bring over the x onto the right side
wait no
nvm
bring 5 over
you need to āisolate the xā
like what we did with the original equations
yes
so x is 8
yep
ok solve x^2-4=0
is ^ multiply?
dark matter
ohh okay
first isolate the x^2
so x^2 = 4
yea
ok
but there is 2 solution
oh
$x=\pm 2$
dark matter
to explain this
x_x
what is (-2)^2
tff is that LOL
$(-2)^2$
dark matter
i think thats just 4
@coral hinge
0
dark matter
dark matter
this?
yeah
so uh wdym satisfy
there is always two solutions to a quadratic, whether real or complex
oh yes yes ik wym
but how did u get -2 from this
yep
look at what i said earlier.
this.
so the -2 we kinda just "Made up"
not necessarily āmade upā
well i dont understand were its coming from
okay, are you on your computer?
ye
send any questions and ping me but rn you have some1 helping u
so later, if you need help later
ok
okay, open up desmos.com/calculator
opened
what i want you to do is graph x^2-4
and graph y=0
you will see the symmetry of the quadratic
oh i should of seen this coming :/
haha, lol
into one of the boxes
there should be some boxes on the left
(i am currently on my phone right now, so you have to get through this)
yes
thatās why there is two solutions
yes
in general, for a quadratic in the form $x^2-c=0$, the solutions are $x=\pm\sqrt{c}$
dark matter
no
oh
$\pm$ means plus and minus
dark matter
oh
yea
dark matter
that means minus and plus
so, $\pm$ and $\mp$ are flipped operations
dark matter
*minus
you donāt.
you just know you have 2 cases where one is plus and one is minus
for example (and this is a little advanced), for $x^2-4x-1$, the solutions are $x=2\pm\sqrt{3}$
dark matter
oh
ye ye alr
š
so now, iām gonna teach you factoring
letās take, for example, $x^2-3x+2=0$
dark matter
now, we can do one of two methods.
the ācrossā method which i cannot show as i am on my phone without paper
hopefully the other method is easier
or, the āsplitā method which i can teach you, and is very similar to the cross method
so, the split method goes liek this
$x^2-3x+2=x^2-2x-x+2=x(x-2)-1(x-2)=(x-1)(x-2)$
dark matter
basically, we find 2 numbers such that they add to -3 and multiply to make 2.
always or in this situation
or this equation*
in this situation
in general, for a quadratic $ax^2+bx+c=0$, we need to find 2 numbers such that they multiply to c and add to b
dark matter
ohh
oh oh oh oh oh ohh
i would of asked down the line how do we know what numbers to find
so that makes sense
dark matter
yes
yea
oh
add to make negative 4
and multiply to make positive 4
oops mb for sayin yes i didnt read it right
uh how do i add to make negative 4 lol
1 and its self right
2,2
-2,-2
4,1
-4,-1
o
ye
now add each pair til you find the one that satisfies this
out of these?
i would say -2 but -2-2 isnt adding really its subtracting right
well, itās (-2)+(-2)
oh right brackets exist
i said -2 here tho and it was wrong
yeah, because -2+2=0
ye mb
ok so what should i do now that i found it
@rapid tendon i think dark is helping someone rn
what do i do now that i found the 2 numbers is that just it?
split it
$x^2-4x+4=x^2-2x-2x+4$
dark matter
(and yes, i am helping someone else, thank you for taking notice)
u are helper of the week (should be helper of the year lol)
how come the +4 stays and were did the two 2x's come from
the +4 stays because itās a constant
and -2x+(-2x)=-4x, which was in the original equation
+4 is c right?
OH
WE DONT split everything then?
split b and uh keep c?
tbf ur helping mutiple people at once prolly rushing back and forth lol
yeah, āminiā factoring
i.e., we now have (x^2-2x)+(-2x+4)
$codr$
dark matter
no.
no.
oh
i was just saying $code$ as an example
dark matter
in reality, itās $(x^2-2x)+(-2x+4)$
dark matter
so, we can factor an x of the left term and a -2 out of the right term.
factor out means divide or
like ātaking outā, i suppose
-2+-2 = -4 so yes
i.e. x^2-2x=x(x-2)
ok
yeah
ohh okay
so
after we
get x(x-2)
do we do smth with -2x on the left and +4 on the right or
yes, what do you think?
what common factor do they have?
2
yeah, so factor that out
x can be a common factor though right not for that but i mean if it had to
alr
so 2(-x+2)
(actually, in general, if there is a negative on the front of the right term, you should take it out)
just factor out the negative
uh
divide everything inside the brackets by negative
eh, i guess
ur taking the -2 out so its x-2
x square -2x
o ok
x-2 in this one too
alr ty for helping me this far
enjoy the break lol
this turns into x(x-2)-2(x-2)
what do you think happens now?
will do for a while before i go cz its getting late for me
its either solved or we "Piece" it back together
oh
something common
(x-2)
factor both by x-2 whatd u get
factor x-2 by x-2?
oh yea
do the same thing with x-2 there
yea
here, x-2 is common
so you can take it out in the same way
the entire (x-2)
im confused why you are replacing it with something
Hii what's the qst pls didn't understand it
remember, k-2ak is same as (1)k -2ak
the original reason why this was made is over but now i need to learn
7th-9th grade stuff
Oh ok
oh right
it was just rearranging equations
factor k out here now
Thx
now
x(x-4)-3(x-4)
factor x-4 out here in the same way as u did with k
same process
yea
ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
i think
x-4(1+1) for the first part ??
but i feel like thats too simple or sum
so it cant be
(x-4)(x-3)
How to Factor Expressions
https://www.mathpapa.com/factoring-examples/
A video revising the techniques and strategies for factorising expressions.
This video is part of the Algebra module in GCSE maths, see my other videos below to continue with the series.
These are the calculators that I recommend:
Casio fx-83GTX Scientific Calculator, Black - https://amzn.to/2P2cyGG
Casio Fx-991ex Scientific Calculator Fx 991...
i gtg for now
but mybe try these
yea will do in a few probably
i got school tmr lmao
if u watch them and have any qs ping me
yuh same
alr
these are way easier tho
wait
Jam
alr
whats your first step on this?
we can take out 2 and a x i think
because -1 is coefficient of x
like -1x
what two numbers multiply to -2 first? list all pairs
whats 1 * 2
2
what two numbers make negative 2 then
nah
1 + -2
2 + -1
o
my brain is shit on not working so well
yea i thought 1*2 was 1-2 aejauehsifkdifhsf
i have this splitting headache
same my brain is completely deep fried

yes
i keep laughing because of how dumb i probably look to both of u lol
$4x^2 -x -2$
same as
$4x^2 -2x +x -2
Jam
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
yea cuz of split right
what do u think u can do here?
one sec
lemme get the notation
(4x²-2x)(x-2)
o maybe not
or*
cuz that makes 0 sense
factor?
so like
how did you get there, first?
splitting
wait
wtf am i sayin
saying
we got 1 and 2 from the
na man im slow asf
ANYWAYS this thing
this too
$4x^2 -x -2$
$4x^2-2x+x-2$
$(4x^2-2x) + (x-2)$
Jam
whats $4x^2$ divided by 2x
wait
Jam
yes
alr
i think bro forgot an x
2x(2x-1)
yea ofc dw lol
i got maths tmrw tho and ive been out for 5 days
i maybe cooked
we will see
anyways ty both of u lol
gn guys ill txt u tmrw here and u can respond whenever
bye bye
all good
wait.
iām going to post a full proof of the quadratic formula here.
o ok
Prove that for $ax^2+bx+c=0$, that $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$\
We have that $ax^2+bx+c=0$. By completing the square, we get $\left(x+\frac{b}{2a}\right)^2-\frac{b^2}{4a^2}+\frac{c}{a}=0$. Thus $\left(x+\frac{b}{2a}\right)^2=\frac{b^2-c(4a)}{4a^2}$. Thus $x+\frac{b}{2a}=\pm\sqrt{\frac{b^2-4ac}{4a^2}}$, and $x=-\frac{b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}$. Thus
$$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$, Q.E.D.
dark matter
this may not make sense, but this is the full proof
which leads us into our next method, completing the square
o
ye theres alot of symbol but lemme have a look at it properly
g0fodsifosfkas[dogosgk
yea no my brain is cooked lol
gl
not this tuesday
mb for not clarifying
but like next tuesday
so i got some time to study and allat
ok
i think we should do algebrac fractions
sadly theres probability aswell
also some shi we havent done like statistics and indicies
though i done nothing i mean literally unheard of
though i know like 2 laws of indicies
sure send a question il go thru it when ik free tmr unless sm1 else does
ok ill send some when ur free
that easy right?
ah np np just work hard
could u give tips on it?
js send whenever lol
o alr
k.
Those who know how to add fractions..
wait no
im gon do normal stuff first
so look lemmget soome question
WAIT
I NEED PEN OR PENCIL
WAIT
I SEE ONE
ok
IM GET questios
btw why u invisible mod
e
mode
so when i get off you expect that im still here
nvm.
??
should i get
ye
okay got
wait
?
wym by take down
write it down
oh
ok after u do that
do that but instead u have 35
and solve.
u need to find the lowest that divide into it
each time
till u reach 1
then multiply all of the numbers u used to divide with
ohh right forgot
natural are 1 and above?
yea
5?
example 1,2,3,4,5
yes
hello
1762???
still need help?
this is your freind, correct?
7 div 7 whats that
1
great!
what are you working on right now?
@hybrid saffron whybis this convo so long any idea
maybe because itās a 3-day long convo.
ye
maybe itās because iāve been participating in it.
Yeah but the question seemed like it won't last more than 200 messages
yo why does the
š
why does the 2 cancel?
2's*
maybe, itās because me and jam have been rotating as helpers.
because i done more then just hte question
maybe, itās because thereās more than one topic mentioned?
thought so
ok no need to be my son it was a question. obv.
im being careful
cuz look buddy.
i aint ever do these and also.
i got huge exam on tuesday.
if i fail im kicked out of higher maths.
Proud of you
thanks for the sarcasm
anyways
U can stop being his PA
iāve been helping him for 3 days?
shh
i have a responsibility???
then you donāt know what a helper is.
reconsider and please stop cluttering the thread
anyways, what were you doing?
i think im good enough at natural numbers and allat
prime factorization?
no i just made up one
for my friend
hes not in my grade but i thought it would be efficent if he done it with me
whys it asking for the first multiples
anyways
...
i do hope your joking
i have a competition in 30 minutes.
becuase itās LCM
yeah, you take the least common multiples
it doesnāt have to necessarily be low.
so 420 is the LCM??
for example, if we take 2 different primes, their LCM is their product.
š
alr
can u give me 2 primes i can do then
and ill try get the lcm
37 and 91
OH WAIT
its lcm not factor
yeah
Bet.
wait
buddy not slick
What's the idea between the title most impossible
could u give me 2 numbers rq and ill get the lcm
Also is this really higher math
24 and 18
no THIS isnt
im starting from grade 7-grade 9
he has to relearn it.
ok
and for grade 9 i only got moved up to higher so i gotta learn everything
It's good that u have the option . My classmates don't do it and keep gsjling
na we dont got the option
Failing*
all the teachers know me and shi
Like it's not a culture at all
so they gave me redemption
For anyone to do past stuff
anyways
what is the lcm of 24 and 18
ill do it
36?
i got 2x2x3x3 anyways
What in the fuck in the
i dont have a calc rn LOL
no.
we have 2x2x2x3 and 2x2x3x3
im not the most reliable for maths
and?
so now, what can we do?
but look
we have the 2x2 common, as well as a 3
this is what i did
but what about the other ones?
wym
ill explain how i got 36
so look
2 in 24
12
then 2 in 12 = 6
then i went 2 in 6 again
or should i have went 3 in 6
What grade are u in now
9th
No go 2
Then 3
i did
ok then its the making the multiply i went wrong or sum
yeah, 3 in 6 would be better
and add a 2
(idrk what your notation is, sorry if iām misinterpreting it)
alr
then for 18
i did
2 into 18
9
3 div 9
3
and then 3 div 3
1
then i have
yeah
three 2's on the left side
and one 3
and one 2 on the right side
and two, 3's on the right side
yeah
like
no
see how hes like circle or sum
How did u survive 3 days in this haunted desert exhiled hype

i just did?
yap yap
it isnāt too hard?
if youāre not willing to dedicate your time, then idk why you even have HOTW in the first place
I don't think u are in a position to defend or counter argue with me when u chose to be in this position
wym
nun argue
he chose?
u dont have a point to argue against
??
look corazon boy take it to dms LOL
Like if u suck at maths and if i say something just accept your fault instead of justifying it
wym
nun suck
buddy expect me to know all from the start
dude, youāre being condescending.
thereās a difference between ignorance and a willingness to learn.
Caus i helped a lot of people?
na ur not allat
no correlation.
isnt he pairing or smth
the circle is for common factors
we build off of those to create the LCM
because if he wasnt then there should be 3 twos in that
U asked how I'm hotw and i said i helped people how is there no correlation
as in, dedication, and the amount of people helped
i can bet you havenāt stayed with someone for more than 1 day.
much less one month.
I haven't yes , I don't view the help post the same way you do
Doesn't mean your perspective supercedes mine
which is precisely why you should change your view
??
when did he say his perspective was better
u came in here whining from the start
lower ur ego
Kid shut up
try to have some dedication instead of just berating an OP 5 messages into a post.

