X 4 2x 3 8x 16 0 July 8, 2019 16 32 64 128 X 4 2x 3 4x 2 8x 16 0 (x ^ 2 - 16)/(8x ^ 3) * (4x)/(x + 4) (8 + x ^ 3)/(16 - x ^ 4) / ((x ^ 2 - 2x + 4)/(x ^ 2 + 4)) 5) (8 + x ^ 3)/(16 - x ^ 4) / ((x ^ 2 - 2x + 4)/(x ^ 2 + 4))
