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va rog problema a doua

Va Rog Problema A Doua class=

Răspuns :

[tex]a)3\sqrt6=\sqrt{9*6}=\sqrt{54}\\ b)14\sqrt5=\sqrt{196*5}=\sqrt{980}\\ c)16\sqrt6=\sqrt{256*6}=\sqrt{1536}\\ d)21\sqrt2=\sqrt{441*2}=\sqrt{882}[/tex]