问题
解答题
(1)计算:
(2)分解因式:2x3y-8x2y2+8xy3. |
答案
(1)原式=
-0.5-17 6
=-
;1 3
(2)2x3y-8x2y2+8xy3
=2xy(x2-4xy+4y2)
=2xy(x-2y)2.
(1)计算:
(2)分解因式:2x3y-8x2y2+8xy3. |
(1)原式=
-0.5-17 6
=-
;1 3
(2)2x3y-8x2y2+8xy3
=2xy(x2-4xy+4y2)
=2xy(x-2y)2.