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URRREGGGGEEEENNNT!! Calculati: desfasurat:
√196•(√98-√18+√162-√72=

6√8-3√32+9√50+5√18=


Răspuns :

14*(7√2-3√2+9√2-6√2)=14*7√2=98√2
12√2-12√2+45√2+15√2=60√2