摘要：计算: (1)2(a5)2·(a2)2-(a2)4·(a2)2·a2, (2)(bn)3·(b2)m+3(b3)n·b2·(bm-1)2, (3)(27×81×92)2. 思路解析:综合运用运算性质进行运算.注意运算顺序与简便方法. 答案:(1)原式=2a10·a4-a8·a4·a2=2a14-a14＝a14. (2)原式=b3n·b2m+3b3n·b2·b2m-2＝b3n+2m+3b3n+2m＝4b3n+2m. (3)(27×81×92)2＝(33×34×34)2＝(311)2＝322.

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