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calculati 25*5 intregi 2/5+4,5*(8,15-2,15) 2mic sus de asupra ultimei paranteze

Răspuns :

25*5 intregi 2/5+4,5*(8,15-2,15)²=
=25*27/5+4,5*36=135+162=297
 [tex]25*5 \frac{2}{5} +4,5*(8,15-2,15)^2=\\ \\=25*5 \frac{2}{5} +4,5*6^2\\\\ =25*5 \frac{2}{5} +4,5*36\\\\ =25* \frac{5*5+2}{5} +4,5*36\\\\ =25* \frac{27}{5} +162\\\\ =675+162\\\\ =837[/tex]