Question

someone check my answer
http://prntscr.com/iobwxz

Answer 1

\(\large {x=\frac{-(-2)+\sqrt{(-2)^2-4\cdot 6\cdot 7}}{2\cdot 6}}=\frac{2+\sqrt{-672}}{12}\)
and
\(\large{x=\frac{-(-2)-\sqrt{(-2)^2-4\cdot 6\cdot 7}}{2\cdot 6}}=\frac{2-\sqrt{-672}}{12}\)

Doing a square root of a negative number gives irrational numbers