(2a+3b)(-2a-3b);(1/2x+1/3y^2)(-1/2x-1/3y^2):(x^2-2y^2)^2-(x^

因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)( 1.已知集合A=｛（x,y)|y=2x+1｝,B=｛(x,y)|y=x+3｝,a∈A,b∈B,求a (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∈ (3x-y)(3x+y)+y(x+y);(a+1/2b)(a-1/2b)-(3a-2b)(3a+2b)快点, 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 分式的通分与约分①：x/a(x-y),y/b(y-x)；②：1/x^2-1,2x/x^2-3x+2； 若A={(x.y)|2x+3y=1}.B={(x.y)|3x-2y=3}则A交B等于? 若集合A=｛（x,y)｜x+2y=3｝,B=｛(x,y)｜2x-y=1｝,求A∩B 设集合A={(x,y)|x^2-y^2/36=1},B={(x,y)|y=3^x }A∩B的子集个数是 已知:6x²-7xy-3y²+14x+y+a=(2x-3y+b)(3x+y+1)求a,b的值 设集合A={x|y=根号(3x-x^2)} B={y|y=2^x,x>1}则A∩B