Question

Simplify (2x – 2y)(2y + 8) = ?

A. 4xy – 16x – 4y2 – 16y
B. 4xy + 16x + 4y2 + 16y
C. 4xy – 4y2
D. 4xy + 16x – 4y2 – 16y

Answer 1

(2x-2y)(2y+8)
= (2x)*(2y)+(2x)*8-(2y)(2y)-(2y)*8
= 4xy+ 16x- 4y^2- 16y

The correct answer is D. 4xy+ 16x- 4y^2- 16y~

Answer 2

The answer is the option D

`4xy+16x-4y^(2)-16y`

Explanation:

we have

`(2x-2y)(2y+8)`

Multiply applying the distributive property

`(2x-2y)(2y+8)=2x*2y+2x*8-2y*2y-2y*8`

`=4xy+16x-4y^(2)-16y`