Answer:
A,
[tex] \frac{5}{2} [/tex]
[tex] - \frac{5}{2} [/tex]
Step-by-step explanation:
[tex]4 {x}^{2} - 25 = 0[/tex]
[tex]4 {x}^{2} = 25[/tex]
[tex] {x}^{2} = \frac{25}{4} [/tex]
[tex]x = \sqrt{ \frac{25}{4} } [/tex]
which equals
[tex] \frac{5}{2} [/tex]
[tex] - \frac{5}{2} [/tex]
