5x 2 45x 0 July 8, 2019 16 32 64 128 5x 2 45x 90 0 5x 4 45x 2 0 2x 4 5x 3 18x 2 45x 0 5x 2 45x 100 0 5x 3 30x 2 45x 0 5x 3 2x 2 45x 18 0 5x2 - 45 = 0 5 x 0