The value of $\lambda$ with $|\lambda| < 16$ such that $2x^2-10xy+12y^2+5x+\lambda y -3=0$ represents a pair of straight lines, is :

Question

$$\begin {array} {1 1} (1)\;-10 & \quad (2)\;-9 \\ (3)\;10 & \quad (4)\;9 \end {array}$$