Question

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

Answer 1

23

Explanation:

Answer 2

23

Explanation:

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

Let x = -2

f(-2) = (-2)^4 +2(-2)^2 -1

=16 +2*4-1

=16+8-1

24-1

23