已知|X-3Y-1|+(X+Y)^=4XY,求X/Y的值另外还有道:已知X^2+Y^2+6X-4Y+13=0,①求X,Y的值②X^2-Y^2的值已知|X-3Y-1|+(X+Y)^2=4XY,求X/Y的值
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![已知|X-3Y-1|+(X+Y)^=4XY,求X/Y的值另外还有道:已知X^2+Y^2+6X-4Y+13=0,①求X,Y的值②X^2-Y^2的值已知|X-3Y-1|+(X+Y)^2=4XY,求X/Y的值](/uploads/image/z/8618367-39-7.jpg?t=%E5%B7%B2%E7%9F%A5%7CX-3Y-1%7C%2B%28X%2BY%29%5E%3D4XY%2C%E6%B1%82X%2FY%E7%9A%84%E5%80%BC%E5%8F%A6%E5%A4%96%E8%BF%98%E6%9C%89%E9%81%93%EF%BC%9A%E5%B7%B2%E7%9F%A5X%5E2%2BY%5E2%2B6X-4Y%2B13%3D0%2C%E2%91%A0%E6%B1%82X%2CY%E7%9A%84%E5%80%BC%E2%91%A1X%5E2-Y%5E2%E7%9A%84%E5%80%BC%E5%B7%B2%E7%9F%A5%7CX-3Y-1%7C%2B%28X%2BY%29%5E2%3D4XY%EF%BC%8C%E6%B1%82X%2FY%E7%9A%84%E5%80%BC)
已知|X-3Y-1|+(X+Y)^=4XY,求X/Y的值另外还有道:已知X^2+Y^2+6X-4Y+13=0,①求X,Y的值②X^2-Y^2的值已知|X-3Y-1|+(X+Y)^2=4XY,求X/Y的值
已知|X-3Y-1|+(X+Y)^=4XY,求X/Y的值
另外还有道:已知X^2+Y^2+6X-4Y+13=0,①求X,Y的值②X^2-Y^2的值
已知|X-3Y-1|+(X+Y)^2=4XY,求X/Y的值
已知|X-3Y-1|+(X+Y)^=4XY,求X/Y的值另外还有道:已知X^2+Y^2+6X-4Y+13=0,①求X,Y的值②X^2-Y^2的值已知|X-3Y-1|+(X+Y)^2=4XY,求X/Y的值
|X-3Y-1|+(X+Y)^2=4XY
|X-3Y-1|+x^2-2xy+y^2=0
|X-3Y-1|+(x-y)^2=0
二元一次方程组
x-y=0
X-3Y-1=0
或
x-y=0
-(X-3Y-1)=0
得x1=-1/2 y1=-1/2
x2=1/2 y2=1/2
2)
(x^2+6x+9)+(y^2-4y+4)=0
(x+3)^2+(y-2)^2=0
x+3=0 y-2=0
x=-3 y=2
X^2-Y^2=(-3)^2-2^2
=9-4
=5