因式分解 (1).(x+y)(x+y-6)+9 (2).x²-16y²-x-4y
因式分解 (1).(x+y)(x+y-6)+9 (2).x²-16y²-x-4y
因式分解:25(x+y)²-9(x-y)²;(x+y)²-4(x+y-1).
因式分解:(1)x²+x (2)4x²-9y (3)x²y-4y
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
(x+y)²+x+y-6因式分解
因式分解:x²(x-y)+(y-x)
谢谢(关于因式分解)2x²+xy-y²-4x+5y-6x²-2x-14(x-y+1)+y(
(2x+y)²-(x+2y)² 因式分解
3(x-2y)²+(x-2y)因式分解
因式分解:25(x-y)²+10(y-x)+1
3m(x-y)-2(y-x)²因式分解
1、(x-1分之x²)-x-1(因式分解);2、x²(x-y)²-4(y-x)²