[tex]\bf \begin{array}{lcclll}
1x^2&+8x&-5&=0\\
1x^2&-8x&-5&=0\\
\uparrow &\uparrow &\uparrow\\
a&b&c
\end{array}
\qquad \qquad
x= \cfrac{ - {{ b}} \pm \sqrt { {{ b}}^2 -4{{ a}}{{ c}}}}{2{{ a}}}[/tex]
so hmm do so then, the quadratic formula is very straightforwards, just plug in your values
