设g(f)=x^3-3x^2-x-1,g(x)=3x^2-2x+1,求用g(x)去除g(f)所得商和余式.易懂急

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设g(f)=x^3-3x^2-x-1,g(x)=3x^2-2x+1,求用g(x)去除g(f)所得商和余式.易懂急设g(f)=x^3-3x^2-x-1,g(x)=3x^2-2x+1,求用g(x)去除g(

设g(f)=x^3-3x^2-x-1,g(x)=3x^2-2x+1,求用g(x)去除g(f)所得商和余式.易懂急
设g(f)=x^3-3x^2-x-1,g(x)=3x^2-2x+1,求用g(x)去除g(f)所得商和余式.易懂

设g(f)=x^3-3x^2-x-1,g(x)=3x^2-2x+1,求用g(x)去除g(f)所得商和余式.易懂急
跟做除法一样:
1/3x -7/9
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3x^2-2x+1 | x^3 -3x^2 - x -1
x^3-2/3x^2 +1/3x
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-7/3x^2 -4/3x -1
-7/3x^2+14/9x -7/9
________________
-26/9x-2/9

于:商:1/3x -7/9 ; 余式-26/9x-2/9