15. [1/3 Points] DETAILS PREVIOUS ANSWERS SCALCET8 12.1.044. MY NOTES Find an equation of the sphere containing all surface points P = (x, y, 2) such that the distance from P to A(3, 5, 2) is twice the distance from P to B(6, 3, 1). (x 9)2 l (y 7)2:(z:2)2_500 3 3 X Find its center and radius. 7 center (x, y, z) =( 9, g, 2 ) J . 10V 15 radius T