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