limx趋向无穷(3x-根号下(ax^2 bx c))=2,求a,b有点急,\(≧▽≦)/~limx趋向无穷(3x-根号下(ax^2+ bx+ c))=2,求a,b

limx趋向无穷(3x-根号下(ax^2 bx c))=2,求a,b有点急,\(≧▽≦)/~limx趋向无穷(3x-根号下(ax^2+ bx+ c))=2,求a,b
limx趋向无穷(3x-根号下(ax^2 bx c))=2,求a,b
有点急,\(≧▽≦)/~
limx趋向无穷(3x-根号下(ax^2+ bx+ c))=2,求a,b

limx趋向无穷(3x-根号下(ax^2 bx c))=2,求a,b有点急,\(≧▽≦)/~limx趋向无穷(3x-根号下(ax^2+ bx+ c))=2,求a,b
a=9,b=-6,c无限定