
(x+1)(x-1)(x平方-x+1)(x平方+x+1)
2个回答
展开全部
这里要用到立方和与立方差公式:
(a+b)(a²-ab+b²)=a³+b³
(a-b)(a²+ab+b²)=a³-b³
解:(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
(a+b)(a²-ab+b²)=a³+b³
(a-b)(a²+ab+b²)=a³-b³
解:(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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