X 2 7x 15 4 July 8, 2019 16 32 64 128 X y 2 7x 4y 15 14 x 2 13x 15 7x 4 Divide 14 x 2 13x 15 7x 4 2x 3 3x 2 7x 15 x 2 4 2x 7