10 4x 1 2 5 July 8, 2019 16 32 64 128 1 2 4x 10 )+ 5 x 11 1 2 8x 10 )= 4x 5 1 5x 10 4x 1 2 1 2 4x 10 5 x 3 6 1 2 4x 10 )= 5 3x 5 4x 1 2 7 10 (- 9x 2 4x 1 )+( 5x 10 10 8x 2 5x 2 4x 1