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Efectuati (√2+√3)²-3(2+√6)+(1+√6)²


Răspuns :

4+9-6+3√6+1+6=14+3√6
stiind ca (√2+√3)²=2+2√6+3(ptr ca este formula )
-3(2+√6)=-6-3√6
(1+√6)²=1+2√6+6⇒
2+2√6+3-6-3√6+1+2√6+6=2+√6