-7c⁶ x 3c²

Simplify

To simplify the given expression, we can use the properties of exponents and combine like terms.

The expression is: -7c⁶ x 3c²

To multiply exponents with the same base, we add their exponents. Thus, we have:
(-7 x 3) x (c⁶ x c²)

Multiplying -7 and 3 gives -21, and multiplying c⁶ and c² gives c⁸.

So the simplified expression is:
-21c⁸