问题
解答题
按要求解答下列各小题 (1)计算:(
(2)分解因式:x2y3-2x2y2+xy. |
答案
(1)原式=4+1-6×
=5-3=2;1 2
(2)x2y3-2x2y2+xy=xy(xy2-2xy+1).
按要求解答下列各小题 (1)计算:(
(2)分解因式:x2y3-2x2y2+xy. |
(1)原式=4+1-6×
=5-3=2;1 2
(2)x2y3-2x2y2+xy=xy(xy2-2xy+1).