问题
解答题
计算: (1)(
(2)
|
答案
(1)(
-5
)(6
+5
)6
=(
)2-(5
)26
=-1;
(2)
-75
+1 27 3
=5
-3 1 9
+3 3
=53 9
.3
计算: (1)(
(2)
|
(1)(
-5
)(6
+5
)6
=(
)2-(5
)26
=-1;
(2)
-75
+1 27 3
=5
-3 1 9
+3 3
=53 9
.3