find value of $K_1$ and $K_2$ for which $y= \large\frac{x}{K_1}$$+K_2$ is a solution of differential equation $y''-2y' -3y=x$

Question

$(a)\;(-3, -\frac{2}{9}) \\ (b)\;(\frac{-2}{9},3) \\ (c)\;(-2,3) \\ (d)\;no\; real\; K_1\;and\;K_2$