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数学
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已知a的3m次方=7,求a的2m+1次方*a的m-1次方+a的m次幂的3次方
人气:392 ℃ 时间:2019-12-13 20:46:25
解答
a的2m+1次方*a的m-1次方+a的m次幂的3次方
=a的3m次方+a的3m次方
=7+7
=14
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