how to do

[stable fulcrum]

how do i do question a and b

[jaunty depot]

expand the 2 brackets

and find out where a and b would be in the quartic equation

then you would vietas formula for quartic equations to find the corresponding value

[jaunty depot]

after simplifying

[stable fulcrum]

vietas formula?

i havent heard of that before

idk if we've learnt it yet

[jaunty depot]

for example, if B is what makes up 3x^ 3then we can use -b/a to find out

[jaunty depot]

oh its a fm thing

[stable fulcrum]

i do fm but i havent heard of it yet

[jaunty depot]

uno

roots of a quadratic

like uno in a quadratic equation

ax^2 + bx+ c

the bx is the sum of the 2 roots

which can be found by doing -b/a

u heard of that?

[stable fulcrum]

nope'

never done that

[jaunty depot]

oh

when i look at the question polynomials instantly come to me

what chapter is that question form

[wanton panther]

wait y do u have to use vietas formula

[wanton panther]

can u not js equate the coefficients

[stable fulcrum]

ive heard of that

[jaunty depot]

thats what i was thinking for a sec

but if u expand it

u cant even cancel terms out

[jaunty depot]

this question is from argand diagrams?

[wanton panther]

fr? ok

[stable fulcrum]

yes

[jaunty depot]

unless i have expanded it wrong

[jaunty depot]

thats strange

[jaunty depot]

u yr 11?

[wanton panther]

yh

[jaunty depot]

how dyu know about vietas formula

[wanton panther]

honestly I js look at topics from a level maths and FM and ask my maths teacher abt them

[jaunty depot]

i rate it

[wanton panther]

and vietas formula was js one of the things I came across

[jaunty depot]

yhh its like the principle of the 3rd chapter in as fm

[wanton panther]

but I only started doing this in like yr 10 summer so I don't know a lot in depth abt each topic but I have like a surface level understanding of the ones I've looked at b4

[jaunty depot]

thats still very good

[wanton panther]

yh anyways back to the qyestion

[stable fulcrum]

the answer is a = -2 and b = 3 but how do u get there

[jaunty depot]

assuming u take it for a level u will be healla ahead

[jaunty depot]

yh icl b is pretty obvsious

[wanton panther]

yh ofc maths and fm are best a levels

[stable fulcrum]

ik

[jaunty depot]

it came to me

but idk how this question has anything related to argand diagrams

[wanton panther]

wait I got that

and I js equated the coefficients

[stable fulcrum]

can u show me ur working out

[wanton panther]

ok one sec

[stable fulcrum]

i only got the b = 3 part

[wanton panther]

lemme js take pic with phone

one sec

[jaunty depot]

yh i just solved it

[jaunty depot]

have u expanded it

the 2 brackets

[stable fulcrum]

yeah

[wanton panther]

,rotate

[wanton panther]

3b = 9

[jaunty depot]

yh i did exactly what u did

equate the x^3

[wanton panther]

yh icl I think we were overcomplicating it in the beginning with the vietas formula stuff this question was pretty straightforward once u figured it out

[jaunty depot]

yhh that was stupid from my behalf

[wanton panther]

nw happens to the best of us

[jaunty depot]

the question reminded me of polynomials when i first saw it hence i went down that root

@stable fulcrum i apologise for complicating it

[wanton panther]

sometimes bc of the a level stuff I learnt in normal gcse maths I overthink stuff

so its fine

like I said

happens to all of us

[jaunty depot]

ahh thats funny ngl

[wanton panther]

yh

[jaunty depot]

yh fair enough

[stable fulcrum]

WW

[wanton panther]

like for example

[jaunty depot]

imma have to keep practicing it

[stable fulcrum]

finally understand now

thanks

[stable fulcrum]

no problem

[jaunty depot]

but i still wont understand why that comes under argand diagrams

[wanton panther]

in one question it gave a graph which showed the cross section of a tunnel and we had to figure out the area of the cross section

so I used integrals

[jaunty depot]

loool wtf

[wanton panther]

but in reality all u had to do was use triangles

[jaunty depot]

i havent even learnt that but ur hella far ahead

[wanton panther]

and estimte

[jaunty depot]

ahh

its good to be ahead especially this early

[wanton panther]

yh

I did the same for gcse

and its helped me so much

[jaunty depot]

yhh it does help a lot i agree

[wanton panther]

100th msg

[jaunty depot]

ur on track to patterning ur gcses then

[wanton panther]

yh I did this with all my subjects

so bc of that I have time to do extra ones out of school

like add maths

and stats

[jaunty depot]

ahh thats good

[wanton panther]

yh those are rlly helpful for a level stats

bc stats is my weakest part in maths

[jaunty depot]

i can imaginee

[wanton panther]

like the calculations are fine

its js interpreting data

[jaunty depot]

yh

havent learnt tm yet

so cant comment

but anyways keep up the work bro

u seem to be doing sick

wil get u far

imma go sleep now

[wanton panther]

ofc gotta keep up the grind

[jaunty depot]

see u around

[wanton panther]

gn then