Question

If f(a)=(a•a•a)-(a•a) + a-1 what is the value of f(-3)?

Answer 1

-40

Explanation:

f(a) = a³ - a² + a - 1

f(-3) = (-3)³ - (-3)² + (-3) - 1

f(-3) = (-27) - (9) + (-3) -1

f(-3) = -27 - 9 -3 - 1

f(-3) = -40