(- 4x 2 x 12 ) ( 2x 3 3x 2 4 July 8, 2019 16 32 64 128 (- 4x 2 x 12 )+( 2x 3 3x 2 4 2x 3 4x 2 5 )-( 4x 3 x 2 3x 12 (12x + 4)/(x ^ 2 + 2x - 3) = (3x - 2)/(x - 1) - (2x + 3)/(x + 3)