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

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

Step-by-step 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