\(25x^2-36=0\)
\(25x^2=36\)
\(x^2=\frac{36}{25}\)
\(x=\sqrt{\frac{36}{25}}\) \(or\) \(x=-\sqrt{\frac{36}{25}}\)
\(x=\frac{\sqrt{36}}{\sqrt{25}}\) \(or\) \(x=-\frac{\sqrt{36}}{\sqrt{25}}\)
\(x=\frac{6}{5}\) or \(x=-\frac{6}{5}\)
\(x=1\frac{1}{5}\) or \(x=-1\frac{1}{5}\)