X 2 3x 9 ) ( 4x 2 6x 1 July 8, 2019 16 32 64 128 X 2 3x 9 )+( 4x 2 6x 1 4 x 3 )( x 2 3x 9 )- x 4x 2 3x )= 6x 108 2x 4x 2 6x 2 9 1 x 3x 3 x 3 = 9
