Question

3(-4y+5)-8(-2y-4) can be written in the form (ay+b) by following the following steps:

(Step 1.) distributive property: -12y+15+16y+32

(Step 2) rearranging terms: -12y+16y+15+32

(Step 3) combining like terms: 4y+47

Which step was not done correctly?

Answer 1

Step 1

Explanation:

He did 3 times -8 as a positive, when a negative times a positive is a negative.