Question

Is anyone good with dividing monomials using the laws of exponents?

Answer 1

Try posting up the actual problem, as opposed to asking such.

Answer 2

\[n ^{3} times n ^{-7}\]

Answer 3

Properties of exponents:
\[
a^ba^c=a^{b+c}\\
\left(a^b\right)^c=a^{bc}
\]So:
\[
n^3\cdot n^{-7}=n^{3+(-7)}=n^{-4}
\]