Find an equation of the sphere containing all surface points P = (x, y, z) such that the distance from P to A(-2, 5, 2) is twice the distance from P to B(6, 2, -2). X 22 12 + (1 - 1 ) + Z 10 2 164 9 Find its center and radius. center 22 ( x, y, z) = 1, 10 3 3 X radius