问题
解答题
计算. (1)2
(2)
|
答案
(1)原式=4
+123
-203
=163
-203
=-43
;3
(2)原式=2
•(x
-6x 2
)=26x 6
•x
=23
-6x 6x 6
•x
=6x 3
.2
x6 3
计算. (1)2
(2)
|
(1)原式=4
+123
-203
=163
-203
=-43
;3
(2)原式=2
•(x
-6x 2
)=26x 6
•x
=23
-6x 6x 6
•x
=6x 3
.2
x6 3