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4×2radical5 - 3×3radical5+10radical80 cit face ​

Răspuns :

Răspuns:

[tex]8 \sqrt{5} - 9 \sqrt{5} + 10 \times 4 \sqrt{5} = [/tex]

[tex]8 \sqrt{5} - 9 \sqrt{5} + 40 \sqrt{5} = 39 \sqrt{5} [/tex]