What should I learn?

[clear narwhal]

Investigate whether -2 is a zero point of the polynomials.
A) P(x) = x^2 + x = 2
B) Q(x) = 4x^2 - 30x + 6

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[clear narwhal]

I don't know what zero point is

I don't know what root is

I don't know what they mean by P(X)

Q(X)

Isn't that functions ?

[timber patrol]

yup p(x) and stuff are functions

zero point is i think if you plug in whatever they want (-2) its 0?

[clear narwhal]

In middle school I learnt about functions, but I forgot most

[timber patrol]

oh

thats fair

[clear narwhal]

?

oH

-2 instead of x?

[timber patrol]

yup

P(-2)

[clear narwhal]

Do I use GeoGebra to see graph and see where point is????

or what do they mean

[timber patrol]

plug in -2

[clear narwhal]

in geo

[timber patrol]

nono

you could just do it manualy

(-2)^2+(-2)-2

[clear narwhal]

what is (P-2) for then?

P(-2)

[timber patrol]

so basiscally the idea of a function is

if we have P(-2)

we replace all the x with -2

[clear narwhal]

Ohhhhhhhh

Ty

[timber patrol]

and then this is a constant

[clear narwhal]

-2 is constant

?

ye

[clear narwhal]

all of them are constants now

[timber patrol]

yup

and just simplify

[clear narwhal]

Yo bro

I gtg

Can you say what I should search up on yt

to learn more?

I reached my limit of 9 hours of math

and now I need to do other things in my schedule

[timber patrol]

i guess roots of funtion idk

or x intercepts

[clear narwhal]

👍🏿

Thanks, prob something in my book aswell

+close