Question

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

f of x = -w and thats why i plugged it in but i cant figure out the value : /

Answer 1

\[f(-x)=2x^2-4x+8\]

Answer 2

on account of \(4(-x)=-4x\) , and \((-x)^2=x^2\)

Answer 3

ok....

Answer 4

im still confused?

Answer 5

was the question

\[f(x)=2x^2+4x+8\] find
\[f(-x)\]?

Answer 6

so i plug it into the x value
cross out like
and am left with x^2?

Answer 7

first step is what you wrote on top
\[f(-x)=2(-x)^2+4(-x)+8 \]

Answer 8

uhah? :) then the next step it toooo?

Answer 9

then
\[2x^2-4x+8\]

Answer 10

ok