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把多项式a2﹣2ab+b2﹣1分解因式,结果是 .
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m=﹣2,n=5
m=2,n=5
m=5,n=﹣2
m=﹣5,n=2
把多项式ax2+2a2x+a3分解因式的结果是.
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m=﹣2,n=5
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m=5,n=﹣2
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把多项式mn2-2mn+m分解因式的结果是
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(b﹣2)(a+a2)
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a(b﹣2)(a﹣1)
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a(4﹣a2)
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(x+2)(x﹣2)
(x﹣2)
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x(x﹣4)
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