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erictan2046

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[求助] [求助] 请各位高手帮手~~~多项式的除法~~

问题1:
          多项式 f(x)=6x^4+7x^3+ax^2+3x+2  能被  x^2-x+b 整除,求 a 与 b 的值。

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feixiaolin

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待定系数法:
1   -1    b
6   y   2/b
y-6=7---->y=13
1   -1    b
6   13   2/b
13b-2/b=-1
6b+2/b-13=a
2楼2014-02-20 22:29:23
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