What is the product of the binomials below?

(2x + 5) (4x + 4)

A. 9x2 + 28x + 20

B. 8x2 + 28x+9

C. 8x1 + 28x+20

D. 9x2 + 28x+9

The correct answer is 8x^2+28x+20.

Step-by-step explanation:

(2x+5) (4x+4)

Multiply the first bracket with each element of second bracket:

=4x (2x+5) + 4 (2x+5)

=8x^2+20x+8x+20

Now solve the like terms:

=8x^2+28x+20

Thus the correct answer is 8x^2+28x+20 ...