问题
解答题
计算 (1)
(2)(3-2
(3)(
(4)(
|
答案
(1)原式=5
-62
+32
=22
;2
(2)原式=3+3
-213
-26=13
-23;13
(3)原式=
+6-2 5 4
-1=3-6-2 5 4
-1=2-5
;5
(4)原式=(
+5
+2
-5
)(2
+5
-2
+5
)=22
×25
=42
.10
计算 (1)
(2)(3-2
(3)(
(4)(
|
(1)原式=5
-62
+32
=22
;2
(2)原式=3+3
-213
-26=13
-23;13
(3)原式=
+6-2 5 4
-1=3-6-2 5 4
-1=2-5
;5
(4)原式=(
+5
+2
-5
)(2
+5
-2
+5
)=22
×25
=42
.10