8x 2 6x 3 4x x 2 July 8, 2019 16 32 64 128 8x 3 2x 2 6x 18 )+( 4x 3 x 2 5x 7 6x 3 4x x 2 7 )+( 2x 3 8x 2 3 2x 3 )( 4x 2 6x 9 )- 8x x 2 3 )= 26