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[2×(3 la puterea a 5 a-5 la puterea a 3 a)+4]÷10?=?

Răspuns :

[tex] \frac{2*( 3^{5}- 5^{3} )+4}{10} = \\ = \frac{2*(243-125)+4}{10} = \\ = \frac{2*118+4}{10} =\\ = \frac{236+4}{10} =\\ = \frac{240}{10} = \\ =24[/tex]