1 (1/3a+b)(1/3a+b) 2 (2x-y)-2(x+2y) 3 (x-y+3)(x-y-3) 4 (-x+y

因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)( (2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y) 已知集合A={（x,y)| (y-3)/ (x-1)=2,x,y∈R},B={（x,y)| 4x+ay=16,x,y∈ 1.已知集合A=｛（x,y)|y=2x+1｝,B=｛(x,y)|y=x+3｝,a∈A,b∈B,求a (3x-y)(3x+y)+y(x+y);(a+1/2b)(a-1/2b)-(3a-2b)(3a+2b)快点, 分解因式1.2a(x-y)-3b(y-x)2.-x^y-2xy+35y3.a^(x-y)-4b^(x-y)若|a+2|+ 设A={(x,y)|y=-2x+3,x,y∈R},B={(x,y)|y=(4-3m^2)x+1,x,y∈R},求A∩B≠ 已知集合A=｛(x,y)｜(y-3)/(x-2)=a+1｝B=｛(x,y)｜(a^2-1)x+(a-1)y=15｝,当a 设A={（x，y）|3x+2y=1}，B={（x，y）|x-y=2}，C={（x，y）|2x-2y=3}，D={（x，y 若A={(x.y)|2x+3y=1}.B={(x.y)|3x-2y=3}则A交B等于? 已知:6x²-7xy-3y²+14x+y+a=(2x-3y+b)(3x+y+1)求a,b的值 若集合A=｛（x,y)｜x+2y=3｝,B=｛(x,y)｜2x-y=1｝,求A∩B