Question

If f(x)=4x3−4x2+10 then how do you find f(−2)?

Answer 1

4(-2)3-4(-2)2+10

4(-8)-4(4)+10

-32-16+10

-32-6

-38

Answer 2

f(x) =4x3 - 4x2 +10

f(-2) = 4×(-2) ×4 - 4×(-2) ×2 +10

= -32 +16 +10

= -32 +26

= -6