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> 计算下列各式:(1)33+2-(22+23);(2)化简:524x-6x9+2x1x,并将自己所喜欢的x值代入化简结果进行计算.-数学
计算下列各式:(1)33+2-(22+23);(2)化简:524x-6x9+2x1x,并将自己所喜欢的x值代入化简结果进行计算.-数学
题目简介
计算下列各式:(1)33+2-(22+23);(2)化简:524x-6x9+2x1x,并将自己所喜欢的x值代入化简结果进行计算.-数学
题目详情
计算下列各式:
(1)3
3
+
2
-(2
2
+2
3
);
(2)化简:
5
2
4x
-6
x
9
+2x
1
x
,并将自己所喜欢的x值代入化简结果进行计算.
题型:解答题
难度:中档
来源:不详
答案
(1)原式=3
3
+
2
-2
2
-2
3
=
3
-
2
;
(2)原式=5
x
-2
x
+2
x
=5
x
.
当x=4时,
则原式=10.
上一篇 :
化简:439a-8a16+4a1a;并将自己所
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题目简介
计算下列各式:(1)33+2-(22+23);(2)化简:524x-6x9+2x1x,并将自己所喜欢的x值代入化简结果进行计算.-数学
题目详情
(1)3
(2)化简:
答案
=
(2)原式=5
=5
当x=4时,
则原式=10.