Question

Evaluate the following functions for the given value.
19. f(x) = -x3 + x2; -2

Answer 1

12

Explanation:

f(x) = -x^3 + x^2

Let x = -2

Evaluate the expression

f(-2) = -(-2)^3 + (-2)^2

= - (-2)*(-2) * (-2) + ( -2) * (-2)

= -(-8) + ( 4)

= 8 + 4

= 12