If f(x) = -x³ + x² + x, find f(-2)

f(x) = -x³ + x² + x

 

To find f(-2), just replace every single " x " with " -2 ", then simplify.

f(-2) = -(-2)³ + (-2)² + (-2)

f(-2) = -(-8) + 4 + (-2)

f(-2) = 8 + 4 - 2

f(-2) = 10