Question

Simplify. Remember to write the powers as a positive number. a^−2*b^5

Answer 1

b^5 divided by a^2

I don't know how to do the fraction thingy on this thing but to explain it, since a has a negative exponent it has to move to the denominator for this equation to work. That is why the b^2 is on top and the a^2 on the bottone. Once the a^-2 goes to the bottom, it loses the negative sign.  

Answer 2

remember that $a^{-b}=\frac{1}{a^b}$

so

$a^{-2}b^5=$

$(\frac{1}{a^2})(b^5)=$

$\frac{b^5}{a^2}$