Question

I need help with this one , please .  (13)^2(13)^-4(13)^5 = 13^_____    to what power ?    Can you explain please

Answer 1

$13^2*13^{-4}*13^5= 13^7*13^{-4}\to\boxed{13^3}$

When you have exercices like this tipe you write the base and add the exponents.the exponents are: 2; -4  and 5 so you put them in a sum:

2+ (-4) + 5=

=2 -4+5=

=7 -4=

=3