The height of a cylinder is twice its radius. A sphere whose radius is 2 inches less than the radius of the cylinder is carved out of the cylinder. If the volume of the remaining portion of the cylinder is 214 cubic inches, which statements about the cylinder's radius, x, are true? The equation x3 + 12x2 24x 305 = 0 can be used to find the cylinder's radius. The equation x3 + 12x2 24x 336 = 0 can be used to find the cylinder's radius. The radius of the cylinder is 7 inches. The radius of the cylinder is 6 inches. The radius of the cylinder is 5 inches