3. (3 points) Find all solutions of the inequality $\cos 5+2 x+x^{2}<0$, lying in the interval $\left[-2 ;-\frac{37}{125}\right]$.
3. $x \in\left(-1-\sqrt{1-\cos 5} ;-\frac{37}{125}\right]$

+(3 points) - solution is correct

+- (2 points) - solution is correct, but in the process of comparing $-1+\sqrt{1-\cos 5}$ with $-\frac{37}{125}$

not all steps are sufficiently justified (for example, it is not explained why $\left.\cos 5<\frac{37}{125} \cdot \frac{213}{125}\right)$

-+ (1 point) - solution is correct, but in the process of comparing $-1+\sqrt{1-\cos 5}$ with $-\frac{37}{125}$ arithmetic errors were made