问题
解答题
计算 (1)3
(2)-82+3×(-2)2+(-6)÷(-
|
答案
(1)原式=(3
-1 2
)+(1 2
+21 3
)2 3
=3+3
=6;
(2)原式=-64+12-54
=-106.
计算 (1)3
(2)-82+3×(-2)2+(-6)÷(-
|
(1)原式=(3
-1 2
)+(1 2
+21 3
)2 3
=3+3
=6;
(2)原式=-64+12-54
=-106.