2. Find a polynomial of the third degree with the leading coefficient 1, given that its three roots $x_{1}, x_{2}, x_{3}$ satisfy the equations: $\alpha=x_{1}+x_{2}, \beta=x_{1}+x_{3}, \gamma=x_{2}+x_{3}$, where $\alpha, \beta, \gamma-$ are all the roots of the polynomial $x^{3}-12 x^{2}+44 x-46$.

Example of answer format: $x^{3}-2 x^{2}+33 x-4$

The symbol $\wedge$ denotes exponentiation. Write the terms in the same order as in the example.
Answer: $x^{3}-6 x^{2}+8 x-2$