a(x1+x2)(x1-x2)+b(x1-x2)化简化简啊

问题描述:

a(x1+x2)(x1-x2)+b(x1-x2)化简化简啊
还可以化简吗,实在算不下去了

a(x1+x2)(x1-x2)+b(x1-x2)
=(x1-x2)[a(x1+x2)+b]谢谢啦