X 4 3x 3 x 2 12x 20 July 8, 2019 16 32 64 128 X 3 + 3x 2 − 4x − 12 = 0 (12x + 4)/(x ^ 2 + 2x - 3) = (3x - 2)/(x - 1) - (2x + 3)/(x + 3)
