(a的n次方*b³)³ *a²*b的2n-7次方-(a的n+1次方*b)平方*(ab

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∮惗贤☆旭
∮惗贤☆旭 2023-03-17 17:35
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  • 2023-03-17 18:10

    (a的n次方*b³)³ *a²*b的2n-7次方-(a的n+1次方*b)平方*(ab²)的n次方=

    原式=(a的n次方)³×(b³)³×a²×(b的2n-7次方)-[a的2(n+1)次方]×b²×(a的n次方)×(b的2n次方)

    =(a的3n次方)×(b的9次方)×a²×(b的2n-7)次方-[a的2(n+1)+n次方]×(b的2n+2次方)

    =(a的3n+2次方)×(b的9+2n-7次方)-(a的3n+2次方)×(b的2n+2次方)

    =(a的3n+2次方)×(b的2n+2次方)-(a的3n+2次方)×(b的2n+2次方)

    =0

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