问题
解答题
计算: (1)
|
答案
(1)2 3
+627 3 4
=2
+33 3
=5
; 3
(2)(
-3
)2+(2
+3
)(2
-3
)2
=5-2
+3-26
=6-2
.6
计算: (1)
|
(1)2 3
+627 3 4
=2
+33 3
=5
; 3
(2)(
-3
)2+(2
+3
)(2
-3
)2
=5-2
+3-26
=6-2
.6