Question

how do i write this in exponential form
6^-3 X 6^-8

Answer 1

You might want to use the property applied to exponents:
\[A ^{^-m}=\frac{ 1 }{ A^m }\]
Where "A" is any nymber or variable, and "m" is any real number.

Answer 2

Also, exponents with the same base are operable, in this case being multiplication:
\[A^m \times A^n = A ^{m+n}\]
In this case A is 6, and that means you can add the exponents and keeping that 6 there.