对于实数x,y,z,定义运算“*”,满足x*y=6x^2+4xy+y^2-249/(x+1)^2
对于实数x,y,z,定义运算“*”,满足x*y=6x^2+4xy+y^2-249/(x+1)^2
已知实数x,y,z,满足那么x+y=6,z^2=xy-9,求(x+y)^z
实数x、y、z满足x=6-3yx+3y-2xy+2z
已知实数x,y,z满足x²-6xy+10y²+4y+|z²-3z+2|+4=0,求(x+y
已知实数x,y,z满足x=6-y,z^2-4z+4=xy-9,求x,y,z的值.
已知实数x,y,z满足x=6-y,z^2-4z+4=xy-9,求x,y,z的值
已知实数X,Y,Z满足 X²-6XY+10Y²+4Y+∣Z²-3Z+2∣+4=0,求(X+
如果实数x,y,z满足x^2+y^2+z^2-(xy+yz+zx)=8,用A表示|x-y|,|y-z|,|z-x|中的最
实数x,y,z满足x=y+根号2,2xy+2*根号2*z*z+1=0,则x+y+z等于多少
已知实数x,y满足5x²+2y²+1=6xy+4x-2y,则x²-xy+2000y
已知实数x,y,z满足x+3y=6,2xy-z^2=6,求x、y、z的值
已知实数x、y、z满足(x²-6xy+10y²+4y)y²+4y+|(z-3/2)