问题
解答题
计算: (1)(
(2)|2
(3)
(4)
|
答案
(1)原式=
+536 24
=6+10
;6
(2)原式=3-2
-4+32 2
=-1+
;2
(3)原式=
-12(3+
)3 6 2- 3 4-3
=2(3+
)-2+3 3
=6+2
-2+3 3
=4+3
;3
(4)原式=2b
•(-ab 3a 2
)÷ab 3 a ab
=-6a2b2×a 3 ab
=-2a2b
.ab