# How do you simplify the square root of s to the eighth power + the square root of 25 times s to the eighth power + 2 the square root of s to the eighth power − the square root of s to the fourth power?

$8 {s}^{4} - {s}^{2}$
$\sqrt{{s}^{8}} + \sqrt{25 \cdot {s}^{8}} + 2 \sqrt{{s}^{8}} - \sqrt{{s}^{4}} =$
${s}^{4} + 5 {s}^{4} + 2 {s}^{4} - {s}^{2} =$
$8 {s}^{4} - {s}^{2}$