问题
解答题
计算: (1)(
(2)(2
|
答案
(1)原式=[(
+3
)+(2
-3
)][(2
+3
)-(2
-3
)]2
=2
•23 2
=4
;6
(2)原式=(2
)2-(33
)22
=12-18
=-6.
计算: (1)(
(2)(2
|
(1)原式=[(
+3
)+(2
-3
)][(2
+3
)-(2
-3
)]2
=2
•23 2
=4
;6
(2)原式=(2
)2-(33
)22
=12-18
=-6.