Question

S=4v²

Answer 1

solve for v

Answer 2

Divide 4 from each side.
\[\frac{ S }{ 4 }=\frac{ 4v ^{2} }{ 4 }\]
\[\frac{ S }{ 4 }=v ^{2}\]
\[\sqrt{\frac{ S }{ 4 }}=\sqrt{v ^{2}}\]
\[\sqrt{\frac{ S }{ 4 }}=v\]