题目内容
(1)计算:(-2)3×
-
+(-1)2010;
(2)分解因式:x3y-6x2y2+9xy3.
| (-4)2 |
| 3 | 27 |
(2)分解因式:x3y-6x2y2+9xy3.
(1)原式=-8×4-3+1
=-32-3+1
=-34;
(2)原式=xy(x2-6xy+9y2)
=x(x-3y)2.
=-32-3+1
=-34;
(2)原式=xy(x2-6xy+9y2)
=x(x-3y)2.
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