Question

what are the five rules in base and exponents

Answer 1

\[x^a(x^b)=x ^{a+b}\]
\[(x^a)/(x^b)=x ^{a-b}\]
\[x^0=1 \] note base can not be 0
\[(x^a)^b=x ^{a(b)}\]

Answer 2

\[x ^{-a}=1/(x ^{a})\]