(x+1)(x-1)(x²-x+1)(x²+x+1)怎么解?
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x^6-1
解析:
(x+1)(x-1)(x²-x+1)(x²+x+1)
=[(x+1)(x²-x+1)][(x-1)(x²+x+1)]
=(x³+1)(x³-1)
=x^6-1
解析:
(x+1)(x-1)(x²-x+1)(x²+x+1)
=[(x+1)(x²-x+1)][(x-1)(x²+x+1)]
=(x³+1)(x³-1)
=x^6-1
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展开全部
(x+1)(x-1)(x²-x+1)(x²+x+1)
=((x+1)(x²-x+1))((x-1)(x²+x+1))
=(x³-x²+x+x²-x+1)(x³+x²+x-x²-x-1)
=(x³+1)(x³-1)
=(x^6)-1
=((x+1)(x²-x+1))((x-1)(x²+x+1))
=(x³-x²+x+x²-x+1)(x³+x²+x-x²-x-1)
=(x³+1)(x³-1)
=(x^6)-1
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