急求分解因式x^5-4x^4+3
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(x-1)(x^4-3x^3-3x^2-3x-3)
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x^5-4x^4+3
=x^5-x^4-3x^4+3
=x^4(x-1)-3(x^4-1)
=x^4(x-1)-3(x²+1)(x+1)(x-1)
=(x-1)[x^4-3(x³+x+x²+1)]
=(x-1)(x^4-3x³-3x²-3x-3)
=x^5-x^4-3x^4+3
=x^4(x-1)-3(x^4-1)
=x^4(x-1)-3(x²+1)(x+1)(x-1)
=(x-1)[x^4-3(x³+x+x²+1)]
=(x-1)(x^4-3x³-3x²-3x-3)
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x5-4x4+3
=x5-x4-3x4+3
=x4(x-1)-3(x4-1)
= x4(x-1)-3(x2+1)(x+1)(x-1)
=(x-1)[x4-3(x2+1)(x+1)]
=x5-x4-3x4+3
=x4(x-1)-3(x4-1)
= x4(x-1)-3(x2+1)(x+1)(x-1)
=(x-1)[x4-3(x2+1)(x+1)]
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