Factor the expression.

Question

Factor the expression. x^2 +2x 18

 

A. (x + 1)(x + 18)

B. (x + 6)2

C. (x + 6)(x + 3)

D. Prime Polynomial

Answer 1

A = 1, B = 2, C = 18.

 

Factor pairs of 18: ±1 & ±18, ±2 & ±9, ±3 & ±6.

 

 

There are no pairs of factors of C = 18 that sum to B = 2.

 

The polynomial is prime.