write 5^2 x 5^-1 x 5^3 as a single exponent
if you could put the tests answers for 19 questions that would be a big help if not ok
when multiplying powers with the same base, keep the base and ADD the
exponents.
(5^2)(5^-1)(5^3)
= 5^(2-1+3)
= 5^4