Question

Which of the following expressions is 8x + 16 not equivalent?

A. 2x + 5 + 6x + 11
B. 10x - 2x - 20 + 4
C. 2(4x+8
D. 8(x + 2)

Answer 1

B

Explanation:

if we solve it

10x-2x means 8x and -20+4 means -16...

and other answer are correct.

• 6x+2x=8x 11+5=+16 so....A is correct 8x+16
• 2(4x+8) .... multiply both numbers in bracket by two. 8x+16
• 8(x+2) multiply both numbers in bracket by eight.8x+16