3x 4 2x 3 9x 2 12x 4 July 8, 2019 16 32 64 128 12 3x - 4 9 = 2 3x + 9 6 (x + 3)/(4x ^ 2 - 9) - (3 - x)/(4x ^ 2 + 12x + 9) = 2/(2x - 3)
