Question

Find the zeros of the function.

f(x) = 9x^3 - 45x^2 + 36x

Answer 1

first find the GCF
can u do that?

Answer 2

Nevermind, I got it, thanks though!

Answer 3

you can take out the highest factor, which is 9x
this gives us
9x(x²-5x+4)

factorise x²-5x+4
(x-1)(x-4)

so we have

9x(x-1)(x-4)

x=0 , x=1, x=4

Answer 4

that is the greatest common factor
GCF of 9,36 and 45 = 3
GCF of x,x^2 and x^3 = x

so its 3x
now we can start t o factor

Answer 5

ooppps yes its 9x

Answer 6

we all make mistakes! <3