Simplify.
\[-3{a}^{2}b\times 5a{b}^{2}\]
Take out the constants.
\[-(3\times 5){a}^{2}ab{b}^{2}\]
Simplify \(3\times 5\) to \(15\).
\[-15{a}^{2}ab{b}^{2}\]
Use Product Rule: \({x}^{a}{x}^{b}={x}^{a+b}\).
\[-15{a}^{2+1}{b}^{1+2}\]
Simplify \(2+1\) to \(3\).
\[-15{a}^{3}{b}^{1+2}\]
Simplify \(1+2\) to \(3\).
\[-15{a}^{3}{b}^{3}\]
-15*a^3*b^3
