How to find the eccentricity of this conic?
4(2y-x-3)² - 9(2x+y-1)²=80
My approach :
I rearranged the terms and by comparing it with general equation of 2nd degree, I found that its a hyperbola. Since this hyperbola is not in standard form x²/a² - y²/b² = 1, I don't know how to find its eccentricity.
Please guide me.