How do I write an equivalent expression to 8x^-8y^4 without negative exponents?

Question

 If possible, may I have a step-by-step explanation? Thank you!

Answer 1

Is this   8x^-8y⁴ ??

 

For negative exponents use the rule:

a^-n = 1/aⁿ

1/a^-n = aⁿ

 

Example:   x^-5 = 1/x⁵

                1/x^-7 = x⁷

 

8x^-8y⁴ = 8y⁴/x⁸