问题
解答题
计算或化简: (1)(
(2)(
(3)
(4)
(5)a
(6)
(7)
(8)
(9)(2
(10)(
|
答案
(1)原式=3
+35
-22
+52 5
=8
+5
;2
(2)原式=(
)2-(5
)26
=5-6
=-1;
(3)原式=3
-33
-25
+55 3
=8
-53
;5
(4)原式=
×5
-10
×5 5
=5
-5;2
(5)原式=a•
+33a a
-a 3 3a 3
=
+33a
-a 3a
=3
;a
(6)原式=(
-1)×8 2
×2 2
=
;4- 2 2
(7)原式=8ab•6ab3
=4
ab2;3
(8)原式=5 2
+4y
-3y y
=7 2
;y
(9)原式=(2
)2-(3
)25
=12-5
=7;
(10)原式=3+2
+1-83 3
=4-6
.3