计算:(1)2x+1-1x-1;(2)0.25×(-2)-2÷(16)-1-(π-3)0.-数学

题目简介

计算:(1)2x+1-1x-1;(2)0.25×(-2)-2÷(16)-1-(π-3)0.-数学

题目详情

计算:
(1)
2
x+1
-
1
x-1

(2) 0.25×(-2)-2÷(16)-1-(π-3)0
题型:解答题难度:中档来源:不详

答案

(1)class="stub"2
x+1
-class="stub"1
x-1
=class="stub"2x-2-x-1
(x+1)(x-1)
=class="stub"x-3
x2-1

(2)0.25×(-2)-2÷(16)-1-(π-3)0=class="stub"1
4
×class="stub"1
4
×16-1=0.

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