计算:an-5(an+1b3m-2)2+(an-1bm-2)3(-b3m+2)
题型:解答题难度:一般来源:不详
计算:an-5(an+1b3m-2)2+(an-1bm-2)3(-b3m+2) |
答案
原式=an-5(a2n+2b6m-4)+a3n-3b3m-6(-b3m+2), =a3n-3b6m-4+a3n-3(-b6m-4), =a3n-3b6m-4-a3n-3b6m-4, =0. |
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