X 3 8 5x 20 x 2 4x x 2 2x 4 July 8, 2019 16 32 64 128 5/(x ^ 2 - 4) - 8/(x ^ 2 - 1) = 2/(x ^ 2 - 3x + 2) - 20/(x ^ 2 + 3x + 2) (4x + 5) ^ 2 - 2x(8x + 1) (x ^ 3 - 5x ^ 2 + 8x - 40)/(x + 4) = 0