Question

What is the value of (x^3 − 7x^2 − 18x + 42) when x = 3?

Answer 1

-150

Explanation:

x^2 - 7x^2 - 18x +42

3^2 - 7(3)^2 - 18(3) + 42

9 - 63 - 54 + 42

-54 -54 + 42

-108 + 42

-150