A={(x,y)|3x+y=7} B={(x,y)}2x-y=3}求 A交B

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A={(x,y)|3x+y=7}B={(x,y)}2x-y=3}求A交BA={(x,y)|3x+y=7}B={(x,y)}2x-y=3}求A交BA={(x,y)|3x+y=7}B={(x,y)}2x-

A={(x,y)|3x+y=7} B={(x,y)}2x-y=3}求 A交B
A={(x,y)|3x+y=7} B={(x,y)}2x-y=3}求 A交B

A={(x,y)|3x+y=7} B={(x,y)}2x-y=3}求 A交B
求两条直线的交点吧:x=2,y=1

好好学习吧

1、(-y^3)^5/y^3/ y^2+2(-y)^102、(x-y)^7/(y-x)^6+(x+y)^3/(x+y)^23、已知X^a=5,x^b=3,求X^(3a-2b)的值 集合A={y|y=x²-4x+3},B={y|y=-x²-2x},那么A∩B=1、集合A={y|y=x²-4x+3},B={y|y=-x²-2x},那么A∩B=2、集合A={y|y=x²-4x+7},B={y|y=-x²-4x+3},那么A∩B= 集合A={y|y=x²-4x+3},B={y|y=-x²-2x},那么A∩B=1、集合A={y|y=x²-4x+3},B={y|y=-x²-2x},那么A∩B=2、集合A={y|y=x²-4x+7},B={y|y=-x²-4x+3},那么A∩B= x+y=a,x-y=b.求2x-3y等于 A={(x,y)|y=-x^2+mx-1},B={(x,y)|y=3-x,0A={(x,y)|y=-x^2+mx-1},B={(x,y)|y=3-x,0 1(x-3x-1)(x+3y-1)2(3x-2y+1/4)²3(a+b)²-(a-b)²4 [2x²-(x+y)(x-y)][(-x-y)×(y-x)+2y²],其中x=1 y=25[(0.5x-y)²+(0.5x+y)²](0.5x²-2y²)6(a+3b)²-2(a+3b)(a-3b)+(a-3b)²7 设集合A={(x,y)/x+3y=7},集合B={(x,y)/x-y=-1},则A交集B= 若集合A={(x,y)|4x+y=6},B={(x,y)|3x+2y=7},则集合A∩B= 设集合A={(x,y)|x+3y=7},B={x,y|x-y=-1},则A∩B= A={(x,y)|4x-y=6},B={(x,y)|3x=2y=7},A∩B 设集合A={(x,y)/x+3y=7},集合B={(x,y)/x-y=-1},则A并B= 初一因式分解练习题,谁好心帮我解下表示平方1.2X~-3XY-X2.(X+Y)~(X+Y)(X-Y)(X+Y)(Y+Z)3.3X(a+2b)~-6XY(a+2b)4.a(x-y)-b(X-Y)-C(Y-X)5.(b-a)~-2a+2b6.(x-y)~-m(y-x)+y-x7.x(x-y)(a-b)-y(y-x)(b-a)8.已知a+b=13,ab=40,求 b+ab~的值 A={(x,y)|3x+y=7} B={(x,y)}2x-y=3}求 A交B 若集合A={(x,y)丨x+3y=7,B={(x,y)丨x-3y=1},则A∩B. 1.设A={(x,y)/4x+y=6} B={(x,y)/3x+2y=7} 则A∩B等于多少 已知集合A={(x,y)|3x-7y=-5},B={(x,y)|2x+9y=40},求A∩B(用列举 已知6x^2-7xy-3y^2+14x+y+a=(2x-3y+b)(3x+y+10,则a=?,b=? 已知6x^2-7xy-3y^2+14x+y+a=(2x-3y+b)(3x+y+1),则a=?,b=?