Question

Cum se rezolva :
$\frac{ \sqrt{x + 4} + \sqrt{x + 9} }{2 \sqrt{x + 4} - \sqrt{x + 9} } = 5 - x$
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Answer 1

se simplifica si ramane

$\frac{ \sqrt{x + 4} }{2 \sqrt{x + 4} } = \frac{5 - x}{1}$

se simplifica iar si ramane

$\frac{1}{2} = \frac{5 - x}{1} = > 10 - 2x = 1 \\ - 2x = 1 - 10 \\ - 2x = - 9 | \times ( - 1) \\ 2x = 9 \\ x = 4.5$