Answer
$x = ±\frac{5}{2}$
Work Step by Step
$4x^{2} - 25 = 0$
$4x^{2} = 25$
$x^{2} = \frac{25}{4}$
$x = ±\frac{\sqrt {25}}{\sqrt {4}}$
$x = ±\frac{5}{2}$
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