3x 2 4x 2 x 2 4x 7 July 8, 2019 16 32 64 128 3x 2 )( 4x 2 2x 7 4x 3 3x 2 7x 2 )+( x 3 7x 2 4x 5 9x 3 7x 2 4x 2 x 4x 3 3x 2
