问题
解答题
化简: (1)(-
(2)
(3)(
(4)(3
|
答案
(1)原式=3-3
=0;
(2)原式=4
-2 3 4
+2 5 2 2
=
;23 2 4
(3)原式=
÷80
+5
÷40 5
=4+2
;2
(4)原式=18+12
+126
=30+12
.6
化简: (1)(-
(2)
(3)(
(4)(3
|
(1)原式=3-3
=0;
(2)原式=4
-2 3 4
+2 5 2 2
=
;23 2 4
(3)原式=
÷80
+5
÷40 5
=4+2
;2
(4)原式=18+12
+126
=30+12
.6