问题
解答题
化简 ①
②(
③
④
|
答案
①原式=3
-2
×33 3
=3
-9;2
②原式=3-2×
×3
+22
=5-2
;6
③原式=
+2
+5 5 5 2
=3+
;2
④原式=5+2×
+2-2 2
-32
=5+
+2-2
-32
=4.
化简 ①
②(
③
④
|
①原式=3
-2
×33 3
=3
-9;2
②原式=3-2×
×3
+22
=5-2
;6
③原式=
+2
+5 5 5 2
=3+
;2
④原式=5+2×
+2-2 2
-32
=5+
+2-2
-32
=4.