若|x-2|+|2y+3x-6|=0,求x,y的值.
若X,Y互为相反数,且(X+Y+3)(X-Y-2)=0,求X,Y的值?
若x、y满足2x+y=6,x-3y=1,求7y(x-3y)²-2(3y-x)³的值
若|x-2|+|2y+3x-6|=0,求x,y的值.
若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值,
若|x+y-1|+(x-y-2)²=0,求代数式(x+2y)(x-2y)-(2x-y)(-y-2x)的值.
当2x-y/x+y=3时,求代数式2x-y/2x+2y+x+y/6x-3y的值.
若x-y/x+y=5,求x-y/2x+2y+5x+5y/3x-3y的值
x²-2x+y²+6y+10=0,求—9(x+y)²+(3x-2y)(2y+3x)的值
已知x^3+xy^2+x+x^2y+y^3+y=0,求5x-6y/3x+4y的值.
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
(1)已知x+y=6,x²-y²=5,求x-y的值(2)若x+y=3,x²+y²
若x^5+x^4y+x^4+x+y+1=0,且3x+2y=1,求x,y的值