6.343 Let $x_{1}, x_{2}, x_{3}$ be the roots of the equation $x^{3}+p x^{2}+q x+r=0$.

1) Form the equation with roots $x_{1} x_{2}, x_{2} x_{3}, x_{1} x_{3}$;
2) use the result from part 1 to find the roots of the equation $x^{3}-3 \sqrt{2} x^{2}+7 x-3 \sqrt{2}=0$.