10 1 2 5x 10 July 8, 2019 16 32 64 128 100 x 2 1 10 1 5x 100 5x 2 =( 1 10 11 x 1 2 6x 10 )+ 10 5x 13 10 5x =- 10x 2 1 7x 5x 10 10 1 2x 2 10 1/2 x 5 10×1 5
