1.44x^8y^6=( )^2
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1.44x^8y^6=()^21.44x^8y^6=()^21.44x^8y^6=()^21.44x^8y^6=(1.2x^4y^3)^21.44x^8y^6=(±1.2x^4x^3)^2
1.44x^8y^6=( )^2
1.44x^8y^6=( )^2
1.44x^8y^6=( )^2
1.44x^8y^6=(1.2x^4y^3 )^2
1.44x^8y^6=(±1.2x^4x^3)^2
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
已知X*X+Y*Y+6X-8Y+25=0 求（Y/X)+(X/Y)-2=?
x*x+2x-y*y+6y-8=0,x+y不等于2,求x-y的值
1.44x^8y^6=( )^2
已知x.x+y.y+8x+6y+25=0,求代数式(x.x-4y.y)/(x.x+4xy+4y.y)-x/(x+2y)的值
{x+y=1 ,xy=-6{x(2x-3)=0,y=x²-1{(3x+4y-3)(3x+4y+3)=0,3x+2y=5{(x-y+2)(x+y)=0,x²+y²=8{(x+y)((x+y-1)=0,(x-y)(x-y-1)=0
x+y=6,x-2y=8
x+y=8,x-y=6求x^2-y^2-2x-2y的值
3(2X+Y)+(2(2x-Y)=6 (8X+4y)-(10X-5Y)=2
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
解方程组8/(x+y) +(x-y)/2=3,6/(x+y)-(x-y)/4=1
8（x-y)=3（x+y)-12 6（x+y)=4（2x-y)+16
8（x-y)=3（x+y)-12 6（x+y)=4（2x-y)+16
已知x^2+y^2-6x-8y+25=0,求分式y/x - x/y的值
已知x^2+y^2-6x-8y+25=0 求y/x-x/y的值
已知x,y满足x^2+y^2-6x+8y+25=0,求y^x的值
已知x+y＝8,x-y=6,求x²-y²-2x-2y的值.