9x 2 x 4 0 July 8, 2019 16 32 64 128 9x 2 2x 4 0 X 3 6x 2 9x 4 0 X 4 9x 2 400 0 X 4 9x 2 20 0 X 4 9x 2 18 0 X 4 9x 2 8 0 X 4 9x 2 10 0 X 4 2x 3 9x 2 2x 8 0 X 4 9x 2 16 0 Solve x 2 9x 4 0 9x 2 3 4 * x sqrt 2 0