Question

Solve?

$\frac{4\pm \sqrt{156}}{10}$

Answer 1

We have,

$\frac{4\pm \sqrt{156}}{10}$

$=\frac{4\pm \sqrt{4\times 39}}{10}$

$=\frac{4\pm 2\sqrt{39}}{10}$

$=\frac{2\pm \sqrt{39}}{5}$

Hence, this is the answer.