. Select equivalent expressions AND solve. \frac{1}{x+3}-\frac{3}{\left(x^{2}+2\right)(x+3)}=\frac{1}{x^{2}+2} \mathbf{A}\left[x=-\frac{1}{2} \sqrt{65}-\frac{3}{2}, x=\frac{1}{2} \sqrt{65}-\frac{3}{2}\right] \text { B }\left[x=-\frac{1}{2} \sqrt{77}-\frac{5}{2}, x=\frac{1}{2} \sqrt{77}-\frac{5}{2}\right] \text { C }\left[x=-\frac{1}{2} \sqrt{17}+\frac{1}{2}, x=\frac{1}{2} \sqrt{17}+\frac{1}{2}\right] Dnone of these