问题
解答题
计算 (1)
(2)(2
|
答案
(1)
-2
+28 72
=
-22
+122 2
=11
;2
(2)(2
-33
)2+(2+2
)(2-3
)3
=12-12
+18+4-36
=31-12
.6
计算 (1)
(2)(2
|
(1)
-2
+28 72
=
-22
+122 2
=11
;2
(2)(2
-33
)2+(2+2
)(2-3
)3
=12-12
+18+4-36
=31-12
.6