Question

a^6/2 -5a^4/ 4. fatoracao.

Answer 1

$\frac{a^6}{2} - \frac{5}{4} a^4= \\ \\ fator~~comum~~em~~evid\hat{e}ncia \\ \\ \frac{1}{2} a^4~~o~~fator~~comum \\ \\ \frac{1}{2} a^4(a^2- \frac{5}{2})$