Answer:
The answer is option 3.
Step-by-step explanation:
[tex]50 - {x}^{2} = 0[/tex]
[tex] {x}^{2} = 50[/tex]
[tex]x = ± \sqrt{50} [/tex]
[tex]x = ± \sqrt{25 \times 2} [/tex]
[tex]x = ±5 \sqrt{2} [/tex]
