Question

10x3 + 2x2 + 5x+1

A. (2x2 + 1)(x + 1)
O B. (2x2+ 1)(5x + 1)
OC (5x2 + 1)(x+1)
OD. (5x2+ 2)(5x+1)

Answer 1

B

Explanation:

Given

10x³ + 2x² + 5x + 1 ( factor the first/second and third/fourth terms )

= 2x²(5x + 1) + 1(5x + 1) ← factor out (5x + 1) from each term

= (5x + 1)(2x² + 1) → B

Answer 2

B is the correct answer