Question

Reduza a uma só pontecia b) (3^4:3^3).(3^5:3^3)

Answer 1

$(3^4:3^3)~.~(3^5:3^3)~=\\\\\\=~\left(\frac{3^4}{3^3}\right)~.~\left(\frac{3^5}{3^3}\right)~=\\\\\\=~\left(3^{\,4-3}\right)~.~\left(3^{\,5-3}\right)~=\\\\\\=~3^{1}~.~3^{2}~=\\\\\\=~3^{1+2}~=\\\\\\=~\boxed{3^3}$