x6次方-1因式分解
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x^6-1
=(x³)²-1²
=(x³+1)(x³-1)
=(x+1)(x²-x+1)(x-1)(x²+x+1)
=(x+1)(x-1)(x²+x+1)(x²-x+1)
=(x³)²-1²
=(x³+1)(x³-1)
=(x+1)(x²-x+1)(x-1)(x²+x+1)
=(x+1)(x-1)(x²+x+1)(x²-x+1)
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