Question

Please answer it fast, no spam no nothing and I'll mark the nawer as the brainliest so please be fast
$\frac{1}{5 - \sqrt{7 } } = x + y \sqrt{7}$
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Answer 1

Answer:

x=5/18;y=1/18

Step-by-step explanation:

$\frac{1}{5 - \sqrt{7} } = x + y \sqrt{7}$

or

$\frac{5 + \sqrt{7} }{25 - 7} = x + y \sqrt{7}$

or

$\frac{5}{18} + \frac{ \sqrt{7} }{18} = x + y \sqrt{7}$

so

$x = \frac{5}{18}$

$y = \frac{1}{18}$