计算:[23x-2x+y(x+y3x-x-y)]÷x-yx.-数学

题目简介

计算:[23x-2x+y(x+y3x-x-y)]÷x-yx.-数学

题目详情

计算:[
2
3x
-
2
x+y
(
x+y
3x
-x-y)]÷
x-y
x
题型:解答题难度:中档来源:不详

答案

[class="stub"2
3x
-class="stub"2
x+y
(class="stub"x+y
3x
-x-y)]÷class="stub"x-y
x

=[class="stub"2
3x
-class="stub"2
x+y
•class="stub"x+y
3x
+class="stub"2
x+y
•(x+y)]•class="stub"x
x-y

=(class="stub"2
3x
-class="stub"2
3x
+2)•class="stub"x
x-y

=class="stub"2x
x-y

故答案为class="stub"2x
x-y

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