Question

5²+5 / 5³ - 1 / 5² . Va rog ajutatima mult!

Answer 1

$\frac{ 5^{2}+5 }{ 5^{3} } - \frac{1}{ 5^{2} } = \frac{ 5^{2} + 5}{ 5^{3} } - \frac{5}{ 5^{3} } = \frac{ 5^{2} +5-5}{ 5^{3} } = \frac{ 5^{2} }{ 5^{3} } = 5^{2-3} = 5^{-1} = \frac{1}{5} =0,2$