X 3 2 6x 18 0 July 8, 2019 16 32 64 128 ( x 3 )^2 - 6x - 18 =0 X 3 3x 2 6x 18 0 X 4 6x 3 7x 2 18 0 6) 3x ^ 2 = 18x (x ^ 2)/(x + 6) = (18 - 3x)/(x + 6)