Question

Which of the following best describes the relationship between (x + 1) and the polynomial x2 - x - 2?

Answer 1

Answer:

C

Step-by-step explanation:

I took the test

Answer 2

Answer:

C

Step-by-step explanation:

to factor x² - x - 2

consider the factors of the constant term which sum to give the coefficient of the x-term.

the factors are - 2 and + 1 since - 2 × 1 = - 2 and - 2 + 1 = - 1

x² - x - 2 = (x - 2)(x + 1), hence (x + 1) is a factor