[tex]x_{1,2}=\dfrac{-(-1)\pm\sqrt{(-1)^2-4\cdot 1\cdot(-30)}}{2\cdot 1}=\dfrac{1\pm\sqrt{121}}{2}=\dfrac{1\pm11}2,\\\\deci\ x_1=-5\;si\;x_2=6.[/tex]
Green eyes.
