题目内容
【题目】将xn+3-xn+1因式分解,结果是_________
【答案】xn-1(x+1)(x-1)
【解析】原式=xn+1(x21)
=xn+1(x+1)(x1),
故答案为:xn+1(x+1)(x1).
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题目内容
【题目】将xn+3-xn+1因式分解,结果是_________
【答案】xn-1(x+1)(x-1)
【解析】原式=xn+1(x21)
=xn+1(x+1)(x1),
故答案为:xn+1(x+1)(x1).