Question

f(x)=2(-x)^2+4(-x)+8

Answer 1

let y = -x
can you factor 2y^2 + 4y + 8

Answer 2

wait what is the question? are you asked to factorize ?

Answer 3

well f of x = -x

Answer 4

2x^2 + 4x + 8

and i plugged in -x but i cant figure it out.

im trying to find the value.

Answer 5

if so i'll proceed
divide by 2 to work with smaller numbers and the answer will already be simplified

y^2 + 2y + 4 = 0
(y+1)^2= -4 + 1
y + 1 = +/-rt 3 i
y = +/-rt 3 i -1
resubstitute y = -x
-x =

Answer 6

well f of x = -x means 2x^2 + 4x + 8 = -x