因式分解习题:
分组分解法综合练习:
(1)xxyxyy (2)axbxbxaxab
(3)x6xy9y16a8a1 (4)a6ab12b9b4a 32232222222
(5)a42a3a29
(7)x22xyxzyzy2
(9)y(y2)(m1)(m1)
十字交叉法综合练习、
(1)8x67x31
(3)(xy)23(xy)10
(5)x2y25x2y6x2
(7)x24xy4y22x4y3
(9)4x24xy6x3yy210
(6)4a2x4a2yb2xb2y (8)a22ab22b2ab1 (10)(ac)(ac)b(b2a) (2)12x211xy15y2 (4)(ab)24a4b3 (6)m24mn4n23m6n2 (8)5(ab)223(a2b2)10(ab)2 (10)12(xy)211(x2y2)2(xy)2