问题
解答题
化简或计算: (1)(
(2)
|
答案
(1)原式=(
)4×10 3
-(3×1)-1-[34×(-0.25)+(1 4
)3×(-3 2
)]-1 3
-10×0.33×1 2 1 3
=
-10 3
-1-31 3
=-1.
(2)原式=
+a
(a1 3
-2b1 3
)(a1 3
+2a2 3
b1 3
+4b1 3
)2 3 a
+22 3
+4b3 ab 2 3
-23 a 3 b
=a
(a1 3
-2b1 3
)+1 3
-23 a 3 b
=
-23 a2
+3 ab
-23 a
.3 b