Factor
\frac{\left(9x-2a\right)^{2}}{36}
Evaluate
\frac{\left(9x-2a\right)^{2}}{36}
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\frac{81x^{2}-36ax+4a^{2}}{36}
Factor out \frac{1}{36}.
\left(9x-2a\right)^{2}
Consider 81x^{2}-36ax+4a^{2}. Use the perfect square formula, p^{2}-2pq+q^{2}=\left(p-q\right)^{2}, where p=9x and q=2a.
\frac{\left(9x-2a\right)^{2}}{36}
Rewrite the complete factored expression.
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