Answer:
f(-2) = 26
Step-by-step explanation:
By substituting -2 into the equation, we get
f(-2) = -(-2)^3 + 3(-2)^2 - 15(-2) - 24
Each of the parts can get simplified.
f(-2) = 8 + 12 + 30 - 24
Add and subtract everything.
f(-2) = 26
Hope this helps!
-Lacy
