例题:(1)-(2m-3)(2)n-3(4-2m)(3)16a-8(3b+4c)(4)t+2/3(12-9v)(5)-(5m+n)-7(a-3b)(6)-1/2(x+y)+1/4(p+q)(7)-8(3a-2ab+4)(8)4(m+p)-7(n-2q) 去括号后:1:-2m+32:n-12+6m3:16a-24b-32c4:t+8-6v5:-5m-n-7a+21b6:-1/2x-1...
例题:(1)-(2m-3)(2)n-3(4-2m)(3)16a-8(3b+4c)(4)t+2/3(12-9v)(5)-(5m+n)-7(a-3b)(6)-1/2(x+y)+1/4(p+q)(7)-8(3a-2ab+4)(8)4(m+p)-7(n-2q) 去括号后:1:-2m+32:n-12+6m3:16a-24b-32c4:t+8-6v5:-5m-n-7a+21b6:-1/2x-1...