问题
解答题
计算题 (1)
(2)(1-
|
答案
(1)原式=3
×(-15)×(-5
)3
=45
;15
(2)原式=1-2
+(2
)2-3(2
-1)+12
=1-2
+2-32
+3+12
=7-5
.2
计算题 (1)
(2)(1-
|
(1)原式=3
×(-15)×(-5
)3
=45
;15
(2)原式=1-2
+(2
)2-3(2
-1)+12
=1-2
+2-32
+3+12
=7-5
.2