Question

Сократите дробь.

а-3√а

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а-9

Answer 1

√а(√а-3)

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(√а-3)(√а+3)

 

√а

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√а-+3

Answer 2

$frac{(a-3sqrt{a})}{(a-9)}= frac{sqrt{a}(sqrt{a}-3)}{(sqrt{a}-3)(sqrt{a}+3)}=frac{sqrt{a}}{sqrt{a}+3}$