问题
解答题
计算:2
|
答案
2
-912
+31 27 48
=2
-94×3
+33 34 16×3
=4
-93 1 32
+123 3
=4
-3
+123 3
=(4-1+12)3
=15
.3
计算:2
|
2
-912
+31 27 48
=2
-94×3
+33 34 16×3
=4
-93 1 32
+123 3
=4
-3
+123 3
=(4-1+12)3
=15
.3