Question

Need help with math
thank you

Answer 1

see below

Explanation:

The applicable rules of exponents are ...

• (a^b)(a^c) = a^(b+c)
• a^(-b) = 1/a^b

Using these to simplify your expression, you get ...

`(-9x^(-1)y^(-9))/(-15x^(5)y^(-3))=(-9)/(-15)x^(-1-5)y^(-9-(-3))\\\\=(3)/(5)x^(-6)y^(-6)=(3)/(5x^6y^6)`