Answer:
Is this the full question?
Step-by-step explanation:
Answer:
x + 8
Step-by-step explanation:
ANSWER
Step 3
EXPLANATION
The given polynomial expression is:

Fatau correctly expanded the parenthesis in the first step.

Fatau also correctly grouped the like terms to obtain:

Fatau committed a mistake at the third step.
Instead of obtaining,

He mistakenly got:

Also can I plz get brainiest?
Answer: -0.07142857142
I looked the question up on google ;)