5n^2-16n+10=0

Solution for 5n^2-16n+10=0 equation:

5n^2-16n+10=0

a = 5; b = -16; c = +10;
Δ = b2-4ac
Δ = -162-4·5·10
Δ = 56
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{56}=\sqrt{4*14}=\sqrt{4}*\sqrt{14}=2\sqrt{14}$
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-16)-2\sqrt{14}}{2*5}=\frac{16-2\sqrt{14}}{10}
$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-16)+2\sqrt{14}}{2*5}=\frac{16+2\sqrt{14}}{10}
$