<span> the equation of this circle is (x - 3)² + (y + 1)² = 4²</span>
I'm not sure what this question means exactly, maybe the principals goal is unrealistic?
It would be .5x-5= because it says 5 less so it would be subtract 5 from half of x.
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:
