若2x-5y+2=0,试求4^x*1/32^y的值.
若x^5+x^4y+x^4+x+y+1=0,且3x+2y=1,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.
已知X.x+y.y-4x+2y+5=0,求4X.X-12X Y+9Y.y的值
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
x平方+y平方-2x-4y+5=0求x,y的值.
若2X+5Y-3=0,求4^x*32^Y的值,
若,2x+5y-3=0,求4x*32y的值
已知2x-5y-5=0,求4^x-1 * 32^y的值
(1)已知2x+5y-3=0,求4^x*32^y的值.
若(x*x+y*y)(x*x+y*y)-4x*x*y*y=0,求代数式(x*x+5xy+y*y)/(x*x+2xy+y*
实数x'y满足x≥y≥1和2x^2-xy-5x+y+4=0求x'y的值
若2x-y=0,求代数式[(x^2+y^2)-(x-y)^2+2y×(x-y)]÷4y的值