In the exercise, you will use the change of variables u = 4y + 3 to find where R is the region bounded by 4x + 2y = -2, 4z + 2y = 0, 3 + 3y^3, and 3 + 3y^1. The integral to be evaluated is ∫∫(4x + 2y)e^12+18ry+0w-A F(u,v)dvdu, where A, B, C, D, and F(u,u) are not specified. After the change of variables, this integral becomes simpler if done correctly. In particular, we obtain ∫∫(4x + 2y)e^12+18rv+y.A.