Question

solve for x given that x is positive
$\frac{2x + \sqrt{4 {x}^{2} - 1 } }{2x - \sqrt{4 {x}^{2} - 1 } } \: = \: \frac{4}{1}$

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Answer 1

Answer:

hope this answer helps you

Step-by-step explanation:

use cross multiplication