Question

cat face -2/5 la puterea a 4a : la 2/5 la puterea a 2 a​

Answer 1

Explicație pas cu pas:

$(- \frac{2}{5} ) {}^{4} \div (\frac{2}{5} ) {}^{2} = \\ \\ = ( \frac{2}{5} ) {}^{4} \div (\frac{2}{5} ) {}^{2} = \\ \\ = (\frac{2}{5} ) {}^{4 - 2} = \\ \\ = (\frac{2}{5} ) {}^{2} = \\ \\ = \frac{2 {}^{2} }{ {5}^{2} } = \\ \\ = \boxed{ \frac{4}{25} }$