5 9x 2 4 9x 3 July 8, 2019 16 32 64 128 27x 5 9x 4 18x 3 9x 2 X 5 5x 4 9x 3 9x 2 5x 1 0 9x 5 9x 4 45x 3 9x 2 9−5x−4x 2 =0 (5x - 9) ^ 2 = (9x - 5) ^ 2
