X 2 4x 72 July 8, 2019 16 32 64 128 X 2 4x 72 0 X 2 4x 725 X 2 24x 72 0 4 4x )+ 2 x )= 72 X 2 24x 72 X 3 3x 2 24x 72 X 3 3x 2 24x 72 0 X 3 3x 2 24x 72 solve by factoring 72 x 2 6 4x )+ 5x