计算(x²-y²)(x+y)÷(x+y)²等于

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/07 04:23:10

计算(x²-y²)(x+y)÷(x+y)²等于
计算(x²-y²)(x+y)÷(x+y)²等于

计算(x²-y²)(x+y)÷(x+y)²等于
解
(x²-y²)(x+y)÷(x+y)²
=(x+y)(x-y)(x+y)÷(x+y)²
=x-y

(x²-y²)(x+y)÷(x+y)²
=(x²-y²)÷(x+y)
=x-y

（x^2-y^2)(x+y)/(x+y)^2=(x+y)(x-y)(x+y)/(x+y)^2=(x-y)(x+y)^2/(x+y)^2=x-y