计算:x-1x2+3x+2÷x-1x+2=______.-数学

题目简介

计算:x-1x2+3x+2÷x-1x+2=______.-数学

题目详情

计算:
x-1
x2+3x+2
÷
x-1
x+2
=______.
题型:填空题难度:偏易来源:不详

答案

class="stub"x-1
x2+3x+2
÷class="stub"x-1
x+2

=class="stub"x-1
(x+1)(x+2)
×class="stub"x+2
x-1

=class="stub"1
x+1

故答案为:class="stub"1
x+1

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