# How do you find the roots of y=x^2+3x+6?

$x = \frac{- 3 \pm \sqrt{{3}^{2} - 4 \cdot 1 \cdot 6}}{2 \cdot 1} = \frac{- 3 \pm \sqrt{- 15}}{2} = \frac{- 3 \pm \sqrt{15} i}{2}$