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calculati radical 36-radical25,radical20+radical45-radical80+radical5,radicl9la puterea2+12laputerea2-radical121​

Răspuns :

[tex] \sqrt{36} - \sqrt{25} = 6 - 1 = 1 \\ \\ \sqrt{20 } + \sqrt{45} - \sqrt{80} + \sqrt{5} = 2 \sqrt{5} + 3 \sqrt{5} - 4 \sqrt{5} + \sqrt{?} = 2 \sqrt{5} [/tex]