问题
解答题
计算: ①(3
②(
|
答案
(1)原式=(9
+2
-22
)÷42 2
=8
÷42 2
=2;
(2)原式=[(
-3
)(2
+3
)]2010(2
+3
)22
=(3-2)2010(3+2
+2)6
=5+2
.6
计算: ①(3
②(
|
(1)原式=(9
+2
-22
)÷42 2
=8
÷42 2
=2;
(2)原式=[(
-3
)(2
+3
)]2010(2
+3
)22
=(3-2)2010(3+2
+2)6
=5+2
.6