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Ajutatima varoggg imi trebuiee urgentttttttttttt

Ajutatima Varoggg Imi Trebuiee Urgentttttttttttt class=

Răspuns :

la prima :
10x[tex] \frac {10x}{ x^{2} - 5} = \frac {10x}{(x- \sqrt {5} )}.{(x + \sqrt {5} )}[/tex]