3x 4 4 5x 2 )-( 1 x 2 2x 3 July 8, 2019 16 32 64 128 X 4 1 3x 3 2 2x 2 1 5x 2 1 4 x 2 1 7 X 4 3x 3 2x 3 5x 2 x x 2 x 1 7x 4
