a fost răspuns

(toata operatia intr-un alt radical) 3+2√2 · (toata operatia intr-un alt radical) 3-2√2 = ? 

Răspuns :

Onisor18ask
(3+2√2) x (3-2√2)=3x3+3x (-2√2)+2√2x3+2√2x(-2√2)=
=9-6√2+6√2-4√4=9-4x2=
=9-8=
=1
Astai rezolvarea daca asta ai dorit, ca nu prea am priceput ce vrei.Succes in continuare! :)

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