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:

Answer:
21 degrees is the answer
Step-by-step explanation:
Answer:
(-3)^3
Step-by-step explanation:
Answer: YES!!!!
Step-by-step explanation:
PLEASE HELP ME ALSO- GO TO MY PROFILE AND ANSWER THE LAST Question.