问题
解答题
计算: (1)(-
(2)
|
答案
(1)(-
)2•(-a2 b
)3÷(-b2 a
)b a
=
•a4 b2
•b6 a3 a b
=a2b3;
(2)
+1 x
+1 2x 1 3x
=6+3+2 6x
=
.11 6x
计算: (1)(-
(2)
|
(1)(-
)2•(-a2 b
)3÷(-b2 a
)b a
=
•a4 b2
•b6 a3 a b
=a2b3;
(2)
+1 x
+1 2x 1 3x
=6+3+2 6x
=
.11 6x