Factor
9\left(2a+3b\right)^{2}
Evaluate
9\left(2a+3b\right)^{2}
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9\left(4a^{2}+12ab+9b^{2}\right)
Factor out 9.
\left(2a+3b\right)^{2}
Consider 4a^{2}+12ab+9b^{2}. Use the perfect square formula, p^{2}+2pq+q^{2}=\left(p+q\right)^{2}, where p=2a and q=3b.
9\left(2a+3b\right)^{2}
Rewrite the complete factored expression.
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