Compute the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. a. y = (x – 1)(x + 1)2 and y = 0, from x = ( to x = 1; about the y-axis b. y = x2 and y = 4x – x2, from x = 0 to x = 2; about the line x = -1 C. y = x +1 and y = 7 – x², from x = -3 to x = 2; about the line x = 2 d. y = x + 1 and y = 7 – x², from x = -3 to x = 2; about the line y = 7