$$x^2-\frac{576}{145} = 0$$
Answer
$$ \begin{matrix}x_1 = -24 \dfrac{\sqrt{ 145 }}{ 145 } & x_2 = \dfrac{ 24 \sqrt{ 145}}{ 145 } \\[1 em] \end{matrix} $$
Explanation
$$ \begin{aligned} x^2-\frac{576}{145} &= 0&& \text{multiply ALL terms by } \color{blue}{ 145 }. \\[1 em]145x^2-145\cdot\frac{576}{145} &= 145\cdot0&& \text{cancel out the denominators} \\[1 em]145x^2-576 &= 0&& \\[1 em] \end{aligned} $$
$ 145x^{2}-576 = 0 $ is a quadratic equation.
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