X 2 18 x 81 0 July 8, 2019 16 32 64 128 X 2 18x 81 0 solve for x X 2 18x 81 0 factored form X 2 18x 81 0 factored X 2 18x 81 0 quadratic formula X 2 18x 81 0 discriminant X 4 18x 2 81 0