3x 2 4x 1 9x 6x 1 July 8, 2019 16 32 64 128 3x 2 4x 1 9x 6x 1 resultado 4/(9x ^ 2 - 1) + 1/(3x ^ 2 - x) = 4/(9x ^ 2 - 6x + 1) 3 4 - 9x = 1 6