(1)计算:8-(3-1)0+|-1|(2)化简:6m2-9÷2m-3-mm+3.-数学

题目简介

(1)计算:8-(3-1)0+|-1|(2)化简:6m2-9÷2m-3-mm+3.-数学

题目详情

(1)计算:
8
-(
3
-1)0+|-1|

(2)化简:
6
m2-9
÷
2
m-3
-
m
m+3
题型:解答题难度:中档来源:不详

答案

(1)原式=2
2
-1+1
=2
2


(2)原式=class="stub"6
(m+3)(m-3)
×class="stub"m-3
2
-class="stub"m
m+3

=class="stub"3-m
m+3

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