Question

Complete the square and write the equation in standard form. Then give the center and radius of the circle.

10x2 + 10y2 = 100
A. x2 + y2 = 100 (0, 0), r = 10
B. x2 + y2 = 10 (0, 0), r = sqrt10

C. x2 + y2 = 10 (0, 0), r = 10

Answer 1

do you know how to complete the square?

Answer 2

I thought you factor but that was wrong

Answer 3

answer is b