Simplify \({25}^{2}\) to \(625\).
\[\frac{25-\sqrt{-625-4\times 1\times -39}}{2\times 1}\]
Simplify \(4\times 1\) to \(4\).
\[\frac{25-\sqrt{-625-4\times -39}}{2\times 1}\]
Simplify \(4\times -39\) to \(-156\).
\[\frac{25-\sqrt{-625-(-156)}}{2\times 1}\]
Remove parentheses.
\[\frac{25-\sqrt{-625+156}}{2\times 1}\]
Simplify \(-625+156\) to \(-469\).
\[\frac{25-\sqrt{-469}}{2\times 1}\]
Simplify \(\sqrt{-469}\) to \(\sqrt{469}\imath \).
\[\frac{25-\sqrt{469}\imath }{2\times 1}\]
Simplify \(2\times 1\) to \(2\).
\[\frac{25-\sqrt{469}\imath }{2}\]
(25-sqrt(469)*IM)/2
