XX-YY/(X-Y)(X-Y)约分

分类: 作业答案 • 2022-04-30 08:54:17

问题描述：

XX-YY/(X-Y)(X-Y)约分

答

XX-YY/(X-Y)(X-Y)
=(x^2-y^2)/(x-y)(x-y)
=(x+y)(x-y)/(x-y)(x-y)
=(x+y)/(x-y)