9x 3x 2 2x 9 July 8, 2019 16 32 64 128 Expand the following 9x 3x 2 2x 9 2x 2 )+( 3x 3 )+( 9x 9 )= 1 2x 2 )+( 3x 3 )+( 9x 9 )= 0 2x 9 3 x 3 = 9