(a-2)(a^2 a 1)-(a^2-1)(2-a)怎么因式分解
1个回答
2016-03-01
展开全部
(a-2)(a²+a+1)-(a²-1)(2-a)
= (a-2)(a²+a+1)+(a²-1)(a-2)
= (a-2){(a²+a+1)+(a²-1)}
= (a-2)(2a²+a)
= a(2a+1)(a-2)
= (a-2)(a²+a+1)+(a²-1)(a-2)
= (a-2){(a²+a+1)+(a²-1)}
= (a-2)(2a²+a)
= a(2a+1)(a-2)
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询