题目内容
计算或解方程:
(1)(2x+10)3=-27.
(2)
-
-|
-4|+(-1)0.
(1)(2x+10)3=-27.
(2)
| (-3)2 |
| 3 | (-2)3 |
| 7 |
(1)2x+10=-3,
解得x=-
;
(2)原式=3-(-2)+
-4+1
=3+2+
-4+1
=2+
.
解得x=-
| 13 |
| 2 |
(2)原式=3-(-2)+
| 7 |
=3+2+
| 7 |
=2+
| 7 |
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