因式分解x4+x3+2x2-x+3
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因式分解x4+x3+2x2-x+3因式分解x4+x3+2x2-x+3因式分解x4+x3+2x2-x+3x4+x3+2x2-x+3=x^4+2x^3+3x^2-x^3-2x^2-3x+x^2+2x+3=
因式分解x4+x3+2x2-x+3
因式分解x4+x3+2x2-x+3
因式分解x4+x3+2x2-x+3
x4+x3+2x2-x+3=x^4+2x^3+3x^2-x^3-2x^2-3x+x^2+2x+3=x^2(x^2+2x+3)-x(x^2+2x+3)+(x^2+2x+3)=
(x^2+2x+3)(x^2-x+1)
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