what is four to the third power times four to the negative five power equal is the answer 16 to the negative 2 power or four to the negative two power
We are using this property a^m * a^n = a^(m + n)
So
4^3 * 4^(-5) = 4^(3 + -5) = 4^(3 - 5) = 4^(-2) = 1 / 4^2 = 1/16