Simplify \({5}^{2}\) to \(25\).
\[25+{x}^{2}={9}^{2}\]
Simplify \({9}^{2}\) to \(81\).
\[25+{x}^{2}=81\]
Subtract \(25\) from both sides.
\[{x}^{2}=81-25\]
Simplify \(81-25\) to \(56\).
\[{x}^{2}=56\]
Take the square root of both sides.
\[x=\pm \sqrt{56}\]
Simplify \(\sqrt{56}\) to \(2\sqrt{14}\).
\[x=\pm 2\sqrt{14}\]
Decimal Form: ±7.483315
x=2*sqrt(14),-2*sqrt(14)
