10 2 5x 10 July 8, 2019 16 32 64 128 10x 2 5x 10 10 1 2 5x 10 10 x 3 2x 2 5x 10 5x 2 10x 10 0 Y 5x 2 10x 10 5x 2 15x 10 5x 10 10x 2 25x 10 (- 10x 3 7x 2 5x 10 5x 10 2 10 5x 5 3 100 5x 2 =( 1 10 11 x 10 2 3x 10 5x 6 10x 10 )-( 7x 2 5x 8 2 5x 3 10 9 10 X 2 10x 5 from 5x 10 4 5x 2 )- 10 2 10x 1