Question

Find f(-2) if f(x) =x^4 +2x^2-1

Answer 1

Answer:

f(x)= -2^4=2*(-2)^2-1

=23

Step-by-step explanation:

Answer 2

Answer:

Plug -2 in for x of f(x)

--> -2^4 + 2(-2)^2 - 1

---> 23

f(-2) = 23