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x pe 18 =√432 pe√192 repede repede

Răspuns :

[tex] \frac{x}{18} = \frac{ \sqrt{432} }{\sqrt{192}} \\ \sqrt{192} x=18\sqrt{432} \\ x=18 \sqrt{432} : \sqrt{192}=\sqrt{139968}: \sqrt{192} \\ \boxed{x=729}.[/tex]