Question

(5+a³)(5-a³)=
me ajudem pfv

Answer 1

$\left(5+a^3\right)\left(5-a^3\right)\\\\\mathrm{Aplicar\:a\:regra\:da\:diferença\:de\:quadrados:\:}\left(a+b\right)\left(a-b\right)=a^2-b^2\\\\=5^2-\left(a^3\right)^2\\\\Apos, simplificar..\\\\=-a^6+25$