Question

rationalize the denominator​

Answer 1

Answer:

$\frac{7}{ \sqrt{5} - \sqrt{3} }$

$\frac{7}{ \sqrt{5} - \sqrt{3} } \times \frac{ \sqrt{5} + \sqrt{3} }{ \sqrt{5} + \sqrt{3} }$

$\frac{7( \sqrt{5 } + \sqrt{3} )}{( \sqrt{5} ) {}^{2} - (\sqrt{3} ) {}^{2} }$

$\frac{7 \sqrt{5} + 7 \sqrt{3} }{5 - 2}$

$\frac{7( \sqrt{5} + 7 \sqrt{3} )}{3}$

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Answer 2

Answer:

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