Answer:
2c8
Explanation:
Simplify using the rule of a negative exponent: a^-n= 1/an
that would give you : 6c^3 x c5
----------------
3
After that, clear the common factor.
So cross out 6 and 3 and your left with 2c^3 x c5
Multiply the monomial: It gives you 2c^8
There is your answer.