2道初二分式计算1.a^(n+1)-6a^n+9a^(n-1)2.a^(n+1)-4a^n+4a^(n-1)这两个怎么分
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2道初二分式计算
1.a^(n+1)-6a^n+9a^(n-1)
2.a^(n+1)-4a^n+4a^(n-1)
这两个怎么分解?
化简
1.a^(n+1)-6a^n+9a^(n-1)
2.a^(n+1)-4a^n+4a^(n-1)
这两个怎么分解?
化简
![2道初二分式计算1.a^(n+1)-6a^n+9a^(n-1)2.a^(n+1)-4a^n+4a^(n-1)这两个怎么分](/uploads/image/z/4693725-45-5.jpg?t=2%E9%81%93%E5%88%9D%E4%BA%8C%E5%88%86%E5%BC%8F%E8%AE%A1%E7%AE%971.a%5E%28n%2B1%29-6a%5En%2B9a%5E%28n-1%292.a%5E%28n%2B1%29-4a%5En%2B4a%5E%28n-1%29%E8%BF%99%E4%B8%A4%E4%B8%AA%E6%80%8E%E4%B9%88%E5%88%86)
1.a^(n+1)-6a^n+9a^(n-1)
=a^(n-1)(a^2-6a+9)
=a^(n-1)(a-3)^2
2.a^(n+1)-4a^n+4a^(n-1)
=a^(n-1)(a^2-4a+4)
=a^(n-1)(a-2)^2
=a^(n-1)(a^2-6a+9)
=a^(n-1)(a-3)^2
2.a^(n+1)-4a^n+4a^(n-1)
=a^(n-1)(a^2-4a+4)
=a^(n-1)(a-2)^2
2道初二分式计算1.a^(n+1)-6a^n+9a^(n-1)2.a^(n+1)-4a^n+4a^(n-1)这两个怎么分
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