求(X+Y)(X+Y)+4(X+Y+1)如何因式分解

(x+y)(x-y)+4(y-1) 已知x×x×y×y+x×x+y×y+1=4xy,求x,y的值快 已知:【(x²+y²)-(x-y)²+2y(x-y)】/4y=1,求4x/4x²-y²-1/2x+y 已知x-y=1,求[(x+2y)²+(2x+y)(x-4y)-3(x+y)(x-y)]÷y的值 已知x-y=1,求[(x+2y)^2+(2x+y)(x-4y)-3(x+y)(x-y)]除以y的值大神们帮帮忙 若(-x+6):(x-y):(4x+y)=3:14:1,求x+y 若(-x+6):(x-y):(4x+y)=3:14:1,求x+y (-x+6):(x-y);(4x+y)=3;14:1,求x+y的值. 已知实数x,y满足方程x*x+y*y-4x+1=0.求y-x的最大值 x>0 y>0 x+y=1,4/X+9/y最小值x>0 y>0 x+y=1,求4/X+9/y最小值 求(1+y)-2x(1+y)+x(1-y) 已知：4x = 5y,求(x+y) ：y x>y,求x2+1/(x-y)y最小值 已知x+y=a,2x-y=-2a,求[（x/y-y/x)/(x+y)-x(1/x-1/y)]/[(x+1)/y]的值 x.y都是自然数,且x(x-u)-y(y-x)+12,求x.y得值快1且x(x-y)-y(y-x)=12 若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值 （x+y)²-4(x+y-1) 因式分解:(x+y)-4(x+y-1)