I went to math major school and now I don't understand nearly everything

[hearty canopy]

try typing it manually in deepL translate?

[lilac wren]

its worse💀

ill just rewrite something that i had a problem with today

[hearty canopy]

some i cant comprehend but 10. could be review about square and cube roots

[lilac wren]

(x-2y)(x+2y)-2(x+y)^2+2y(2x+y) and u had change x and y for something but it was easy and u had to use shortened multiplication formulas (translation might be wrong) i thought it was easy but still fucked it up somehow

[hearty canopy]

im not the right tutor for this tho im doing pre-college level stuff

[lilac wren]

Idk from what age is college bcuz im polish and I'm 15 rn

[hearty canopy]

oh translation being hard makes sense i would ask ur professor first

[lilac wren]

she is fucking stupid i would do that but she will say its easy how u cant solve it

[hearty canopy]

ohh you should look up combining like terms

[lilac wren]

u cant do that here

[fluid urchin]

sometimes u gotta let go
just ask her again and dont think about anything negative she says 😔

send topics without translation

[hearty canopy]

good luck if you dont read polish

[lilac wren]

so like this i have no idea how to even start it

[hearty canopy]

im american and had nothing like this at ur age

💀

[lilac wren]

maybe its like deleting the root signs (i think thats the correct name in english)

[lilac wren]

lmao

[hearty canopy]

even as an honors student i didnt have it

[lilac wren]

i wanted to do 62

[hearty canopy]

college is 18-19 for the first year

[raw fossil]

what's the whole question

63 i assume

[lilac wren]

62

shorten the thing as much as u can and then a+ sqrt(7)

[hearty canopy]

#1425136602186780682 message

this guy had a similar problem

actually not really

[lilac wren]

yeah...

[raw fossil]

okay, put brackets around the rational and irrational parts of the denominators, so like so: \frac{(a+2)+\sqrt{a^{2}-4}}{(a+2)-\sqrt{a^{2}-4}} + \frac{(a+2)-\sqrt{a^{2}-4}}{(a+2)+\sqrt{a^{2}-4}}

[lilac wren]

is there any good program to right shit it in like math

[fluid urchin]

in 61 just open the square and simplify it

[lilac wren]

bcuz i dont understand it at all

[hearty canopy]

like a solver

wolframalpha

[lilac wren]

no i mean like notebook but on pc

[hearty canopy]

to just write there was one but i forgot

[lilac wren]

so its looks better than my paint drawings

[raw fossil]

I thought that there was a LaTeX bot

$\frac{(a+2)+\sqrt{a^{2}-4}}{(a+2)-\sqrt{a^{2}-4}} + \frac{(a+2)-\sqrt{a^{2}-4}}{(a+2)+\sqrt{a^{2}-4}}$

[violet crescent]

MineNinja77777

[lilac wren]

its my first time in my life not understanding math after i got in a new school so i dont know these new studying things

[raw fossil]

there we are

[lilac wren]

lets go

[fluid urchin]

(a-b)(a+b) = a square - b square

[raw fossil]

Let's sort out the 1st fraction first, so just $\frac{(a+2)+\sqrt{a^{2}-4}}{(a+2)-\sqrt{a^{2}-4}}$

[violet crescent]

MineNinja77777

[lilac wren]

i would maybe do the 4 in -2 infront the funky thingy and under it a squere but probably cant do that

[raw fossil]

using this, we can multiply both the numerator and denominator by $(a+2)+\sqrt{a^{2}-4}$, to get $\frac {((a+2)+\sqrt{a^{2}-4})^{2}} {(a+2)^{2}-(\sqrt{a^{2}-4})^{2}}$

[violet crescent]

MineNinja77777

[raw fossil]

we are treating $(a+2)$ as a, and $\sqrt{a^{2}-4}$ as b

[violet crescent]

MineNinja77777

[raw fossil]

which is how I got the denominator to be what it is

[fluid urchin]

i think u should solve it by yourself by the hints
you'll gain much more experience

[raw fossil]

$a^{2}-b^{2} = (a-b)(a+b)$

[violet crescent]

MineNinja77777

[raw fossil]

can we expand and apply this to the other fraction too?

[lilac wren]

im not passing this test

[lilac wren]

what happened here

its still dont understand

[fluid urchin]

🙏 its tomorrow?

[lilac wren]

numerator is the top one right

[lilac wren]

in two days :))))

[fluid urchin]

more than enough time to ace this test

[raw fossil]

yep

[raw fossil]

sorry, let me backtrack

1 min

so, the 1st fraction is $\frac{(a+2)+\sqrt{a^{2}-4}}{(a+2)-\sqrt{a^{2}-4}}$

[violet crescent]

MineNinja77777

[raw fossil]

right?

[lilac wren]

yeah

[raw fossil]

we can multiply the numerator and denominator both by $(a+2)+\sqrt{a^{2}-4}$

[violet crescent]

MineNinja77777

[lilac wren]

okay yeah i understand it now

[raw fossil]

to get $\frac{((a+2)+\sqrt{a^{2}-4})((a+2)+\sqrt{a^{2}-4})}{((a+2)-\sqrt{a^{2}-4})((a+2)+\sqrt{a^{2}-4})}$

[violet crescent]

MineNinja77777

[raw fossil]

which we can simplify to $\frac {((a+2)+\sqrt{a^{2}-4})^{2}} {(a+2)^{2}-(\sqrt{a^{2}-4})^{2}}$

[violet crescent]

MineNinja77777

[raw fossil]

Do you understand that or want me to explain more?

[lilac wren]

the a+2 in the numerator it should be like this or squered

[raw fossil]

The whole numerator is squared

[lilac wren]

i still need to get my hours in but im locked in now

[raw fossil]

as it was the same thing twice

[fluid urchin]

atleast give math 3 hours of attention 🥀

[lilac wren]

but why on the top its not and in the bottom it is squered

[fluid urchin]

today tmrw and day after tmrw

[lilac wren]

its my first time studying in my 15 years that im on this planet

[fluid urchin]

its not that hard bruv im 16 too 😭

[raw fossil]

but trust

[fluid urchin]

less go

[lilac wren]

im stupid

[fluid urchin]

nah

just ask your teacher until they get tired

thats the key

[raw fossil]

honestly you are not. It sounds like the polish curriculum is much harder than mine.

I'm very ahead for my curriculum

[fluid urchin]

give them a run for their money

[fluid urchin]

lemme guess asian?

[raw fossil]

I'm not

[lilac wren]

they earn less than a cashier do u think they care about as asking a question

[fluid urchin]

damn

[fluid urchin]

oh :/

[lilac wren]

my math teacher is a pe music math and primarary physisc teacher

[fluid urchin]

yea u r cooked

[raw fossil]

on top, we simplified $((a+2)+\sqrt{a^{2}-4})((a+2)+\sqrt{a^{2}-4})$ to $((a+2)+\sqrt{a^{2}-4})^{2}$

[violet crescent]

MineNinja77777

[raw fossil]

understand?

[fluid urchin]

u patient af 🥀

[lilac wren]

fr i dont know why he is still here

[lilac wren]

wait a sec

i think i do

[fluid urchin]

honestly just watch some math nerd yt videos if u need help with the whole thing otherwise honestly u cooked in the test

[raw fossil]

good

[lilac wren]

what happened to give it 3 hours and ill ace it

[raw fossil]

now for the denominator we use the rule that $a^{2}-b^{2} = (a-b)(a+b)$

[violet crescent]

MineNinja77777

[fluid urchin]

itll work but the work youll do in 1.5hrs u can do it in 30 min of less with yt

[raw fossil]

do you follow?

[lilac wren]

ahhh okay yeah i got it

[raw fossil]

so you understand how we got here?

[lilac wren]

yep!

[raw fossil]

good!

I may have to head off now

You'll have to wait for someone else to come over and explain to you

[lilac wren]

alr thanks for the help

[raw fossil]

Resend the original question so that future helpers can help

[lilac wren]

.

[hearty canopy]

some teachers i had before highschool were rude so i feel it like trying to take shit out on the students

[raw fossil]

okay I'm back