Question

What is the product of the polynomials below?

(4x3 + 2x2 + 3x + 4)(4x + 4)

A. 16x4 + 24x3 + 20x2 - 28x - 16
B. 16x4 + 24x3 + 20x2 + 28x + 16
C. 16x4 + 8x3 + 4x2 + 4x + 16
D. 16x4 + 16x3 - 4x2 + 28x + 16

Answer 1

hello :
(4x3 + 2x2 + 3x + 4)(4x + 4) = 16x4 +16x3 +8x3+8x2 +12x2+12x+16x+16
= 16x4 + 24x3 + 20x2 + 28x + 16...(answer: B)

Answer 2

B is the. correct answer