计算:x2+xyx2-xy÷(x-y)•x2-xyxy.-数学

题目简介

计算:x2+xyx2-xy÷(x-y)•x2-xyxy.-数学

题目详情

计算:
x2+xy
x2-xy
÷(x-y)•
x2-xy
xy
题型:解答题难度:中档来源:不详

答案

原式=
x(x+y)
x(x-y)
class="stub"1
x-y
x(x-y)
xy

=class="stub"x+y
x-y
class="stub"1
x-y
class="stub"x-y
y

=class="stub"x+y
xy-y2

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