联立方程x-y+2=0,4x^2-y^2=12,怎么解,

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联立方程x-y+2=0,4x^2-y^2=12,怎么解,联立方程x-y+2=0,4x^2-y^2=12,怎么解,联立方程x-y+2=0,4x^2-y^2=12,怎么解,x-y+2=0,y=x+24x^

联立方程x-y+2=0,4x^2-y^2=12,怎么解,
联立方程x-y+2=0,4x^2-y^2=12,怎么解,

联立方程x-y+2=0,4x^2-y^2=12,怎么解,
x-y+2=0,y=x+2
4x^2-y^2=12
(2x+y)(2x-y)=12
(3x+2)(x-2)=12
3x^2-4x-16=0
x=(4±4√13)/6=(2±2√13)/3
y=x+2=(8±2√13)/3
望采纳.纯口算有误请原谅.