6 5 8x 3 1 2 July 8, 2019 16 32 64 128 5 8x 2 )( 3 1 2x 6 3 x 6 8x 5 2x 1 1 5 6 8x )=- 7 3 2x 5 8x 6 2 3 4x 1 2 3 4 1 2x 6 =- 5 8x 1 4 6 5×(-30 8) 6 8×3 5+2 5 6 5+8 6
