Question

if X2+1/x=26 find the value pf x+1/x​

Answer 1

Answer:

$\begin{eqalign}</p><p> & x=-\frac{2\sqrt{78}\cos(\frac{\arccos(\frac{3\sqrt{78}}{1352})}{3})}{3}\approx -5.118142571 \\</p><p>& x=\frac{\sqrt{78}\left(\sqrt{3}\sin(\frac{\arccos(\frac{3\sqrt{78}}{1352})}{3})+\cos(\frac{\arccos(\frac{3\sqrt{78}}{1352})}{3})\right)}{3}\approx 5.079678844 \\</p><p>& x=\frac{\sqrt{78}\left(-\sqrt{3}\sin(\frac{\arccos(\frac{3\sqrt{78}}{1352})}{3})+\cos(\frac{\arccos(\frac{3\sqrt{78}}{1352})}{3})\right)}{3}\approx 0.038463727 </p><p> \end{eqalign}$

Answer 2

Here is your answer