-6c squared - 4c squared

Answer 1

To combine the terms \(-6c^2\) and \(-4c^2\), you simply add the coefficients of the \(c^2\) terms:

\[ -6c^2 - 4c^2 = (-6 - 4)c^2 = -10c^2. \]

So, the result is:

\[ -10c^2. \]