Paper 2 May/June 2007 MATHEMATICH (9709/2) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

A curve has equation ${x^2} + 2{y^2} + 5x + 6y = 10$. Find the equation of the tangent to the curve at the Point $\left( {2,\,\, - 1} \right)$. Give your answer in the form $\alpha x + by + c = 0$, where $\alpha $, $b$ and $c$ are integers.