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Aratati ca radical2+radicaldin8-3radicaldin2=0

Răspuns :

√2+√8-3√2=0
√8=2√2
√2+2√2-3√2=3√2-3√2=0
succes
√2+√8-3√2=√2+2√2-3√2=
3√2-3√2=0