Respuesta :

devishri1977

Answer:

Step-by-step explanation:

In exponent multiplication, if bases are same, add the exponents.

[tex]a^{m}*a^{n}=a^{m+n}\\\\\\(-5)^{3}*13^{-2}*(-5)*13^{9}= (-5)^{(3+1)}*13^{(-2+9)}\\\\\\= (-5)^{4}*13^{7}[/tex]