因式分解:1、x²(x-y)+(y-x);2、4x²y-12xy+9y;3、4(a+b)²
因式分解2x²y-xy-3y (-a+b)+c²(a-b)
谢谢(关于因式分解)2x²+xy-y²-4x+5y-6x²-2x-14(x-y+1)+y(
因式分解 (1).(x+y)(x+y-6)+9 (2).x²-16y²-x-4y
因式分解:[x(x²y²-xy)-y(x²-x³y)]÷3x²y
因式分解:(1)x²+x (2)4x²-9y (3)x²y-4y
(1).设A=2X²-3Xy+y²+X-3y,B=4X²-6xy+2y²+4X-
(x+y)(x²-xy+y²)—xy(x+y)因式分解
多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x
因式分解 1.-x² +4xy-4y² 2.4(x+y)²-9(x-y)²
因式分解①9(x+y)²-12(x+y-1/3) ②8-6x-6y+(x+y)²③xy³-
因式分解:(1)(a+b)²+a+b+1/4 (2)6(x-y)²+3(y-x)³
因式分解:25(x+y)²-9(x-y)²;(x+y)²-4(x+y-1).