2x 5 )( x 1 )= 4x 9 July 8, 2019 16 32 64 128 5 4 x 1 )= 7 2x 9 4x 7 2x 3 x 1 9x 5 4x 5 2x 1 4x 9 4 x 4x 5 2 2x 3 )( x 1 )= 9 4x 7 )( 4x 5 )( x 1 )( 2x 1 )= 9
