Take out the constants.
\[-(108\times 18){a}^{3}a{b}^{3}bccBY\]
Simplify \(108\times 18\) to \(1944\).
\[-1944{a}^{3}a{b}^{3}bccBY\]
Use Product Rule: \({x}^{a}{x}^{b}={x}^{a+b}\).
\[-1944{a}^{3+1}{b}^{3+1}ccBY\]
Simplify \(3+1\) to \(4\).
\[-1944{a}^{4}{b}^{4}ccBY\]
Regroup terms.
\[-1944cBY{a}^{4}{b}^{4}c\]
-1944*cBY*a^4*b^4*c
