(3a-2a^2)(3-2a-a^2)/(a^2+a)(2a^2-5a+3)约分

分类: 作业答案 • 2021-12-19 15:51:29

问题描述：

答

(3a-2a^2)(3-2a-a^2)/(a^2+a)(2a^2-5a+3)
=(2a²-3a)(a²+2a-3)/(a²+a)(2a²-5a+3)
=a(2a-3)(a+3)(a-1)/a(a+1)(2a-3)(a-1)
=(a+3)/(a+1)