
因式分解x^4+x^3+x^2+2=
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您好!
x^4+x^3+x^2+2
=(x^4+2x^2+1)-x^2+(x^3+1)
=(x^2+1)-x^2+(x+1)(x^2-x+1)
=(x^2-x+1)(x^2+x+1)+(x+1)(x^2-x+1)
=(x^2+2x+2)(x^2-x+1)
x^4+x^3+x^2+2
=(x^4+2x^2+1)-x^2+(x^3+1)
=(x^2+1)-x^2+(x+1)(x^2-x+1)
=(x^2-x+1)(x^2+x+1)+(x+1)(x^2-x+1)
=(x^2+2x+2)(x^2-x+1)
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