Question

Serena simplify the expression 3 (2x - 6 - x + 1 )^2 - 2 + 4x in step 1 she simplified within the parentheses in step 2 she expanded the exponent witch is a possible next step

Answer 1

For step three she could multiply the two parenthesis against each other to get 3(x² - 10x + 25) - 2 + 4x

Explanation:

step 1: 3(x - 5)² - 2 + 4x

step 2: 3(x - 5)(x - 5) - 2 + 4x

For step three she could multiply the two parenthesis against each other to get 3(x² - 10x + 25) - 2 + 4x