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Radical din 80 minus radical 245 plus radical 125

Răspuns :

√80-√245+√125=4√5-7√5+5√5=-3√5+5√5=2√5

√80 -√245 + √125 = 2√5

= 4√5 - 7√5 + 5√5 =

= - 3√5 + 5√5 =

= 2√5