Question

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

Answer 1

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