
1+x的5次方减x的3次方减x的2次方,因式分解
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1+x的5次方减x的3次方减x的2次方
=(x^5-x³)-(x²-1)
=x³(x²-1)-(x²-1)
=(x³-1)(x²-1)
=(x-1)(x²+x+1)(x+1)(x-1)
=(x+1)(x²+x+1)(x-1)²
=(x^5-x³)-(x²-1)
=x³(x²-1)-(x²-1)
=(x³-1)(x²-1)
=(x-1)(x²+x+1)(x+1)(x-1)
=(x+1)(x²+x+1)(x-1)²
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