# 10. $/ 3$ points/

The answer to the task should be some integer or a number written as a finite decimal. If the answer contains a fractional number, use a comma when writing it. Enter all characters (comma, digits) without spaces. There is no need to specify units of measurement.

The bisector of angle $N$ of triangle $M N P$ divides side $M P$ into segments whose lengths are 28 and 12, and $M N - N P = 12$. Find the perimeter of triangle $M N P$.
Answer: 70

The answer to the task should be some integer or a number written as a finite decimal. If the answer contains a fractional number, use a comma when writing it. Enter all symbols (minus sign, comma, digits) without spaces.

Find all different values of the parameter $p$ for which the equation given below has a single root. In your answer, specify the sum of the found values of the parameter $p$.

$$
\frac{x^{2}-2 p x+p^{2}+p-20}{x}=0
$$

Answer: 19