4x 2 )-( 7x 3 )= 9 July 8, 2019 16 32 64 128 4x 4 5x 2 7x 9 )/( 2x 3 4x 5 2 7x 3 9 6x 4x 2 7x 3 9x 2 5x X 3 )( 4x 2 7x 9 8x 4x 2 3 )-( 7x 2 9 7x 4x 2 6 4 7x 3 9x − 12 4x y 3 7x 9y =- 2 7x 2 9x 3 x 4x 6 7x 2 4x 3 )= 8 x 9 )- 30 7x 5 )( 2x 3 4x 2 9x 3 7x 3 9x 2 14x )-( 4x 3 4 x X 4 4x 3 6x 2 7x 9 0 9 2 7x 3 )= 3 4x 3 )+ 8