计算:a1a+4b-(a2-b1b)-数学

题目简介

计算:a1a+4b-(a2-b1b)-数学

题目详情

计算:a
1
a
+
4b
-(
a
2
-b
1
b
)
题型:解答题难度:中档来源:不详

答案

a
class="stub"1
a
+
4b
-(
a
2
-b
class="stub"1
b
)

=
a
+2
b
-(class="stub"1
2
a
-
b

=
a
+2
b
-class="stub"1
2
a
+
b

=class="stub"1
2
a
+3
b

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