Answer:
i think this is A. hope this helps.
Step-by-step explanation:
For this case we must simplify the following expression:

We apply distributive property to the terms within parentheses:

We add similar terms:

Thus, the simplified expression is: 
Answer:

The equation of a circle is (x - h)² + (y - k)² = radius² where (h, k) is the ordered pair for the center.
(x - (- 3))² + (y - 6)² = 10²
(x + 3)² + (y - 6) = 100