Question

What is the remainder when x^3 - 1 is divided by (x + 2)?

Answer 1

Negative 9 or -9 is the answer.

Answer 2

-9

Explanation:

Use synthetic division here. The divisor will be -2, which comes from the divisor (x + 2):

-2 / 1 0 0 -1

-2 4 -8

-------------------------

1 -2 4 -9

The remainder is -9.