题目内容
计算:
(1)(-
)3;
(2)(-
)2•(
)3.
(1)(-
x3 |
y2 |
(2)(-
a2 |
b4 |
b2 |
-a |
(1)原式=-
=-
;
(2)原式=
•(-
)
=-
.
(x3)3 |
(y2)3 |
=-
x9 |
y6 |
(2)原式=
a4 |
b8 |
b6 |
a3 |
=-
a |
b2 |
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题目内容
x3 |
y2 |
a2 |
b4 |
b2 |
-a |
(x3)3 |
(y2)3 |
x9 |
y6 |
a4 |
b8 |
b6 |
a3 |
a |
b2 |