Question

By each expression using positive exponents m^3n^-6p^0

Answer 1

"By each expression using positive exponents m^3n^-6p^0" is incomplete; some words are missing. I must guess what you meant:

m^3 * n^(-6) * p^0 (use ( ) around negative exponents, please)

This simplifies to

m^3 * 1 m^3

-------------- = ------------

n^6 n^6