Factor
\frac{\left(9x-4y\right)\left(9x+4y\right)}{144}
Evaluate
\frac{9x^{2}}{16}-\frac{y^{2}}{9}
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\frac{81x^{2}-16y^{2}}{144}
Factor out \frac{1}{144}.
\left(9x-4y\right)\left(9x+4y\right)
Consider 81x^{2}-16y^{2}. Rewrite 81x^{2}-16y^{2} as \left(9x\right)^{2}-\left(4y\right)^{2}. The difference of squares can be factored using the rule: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
\frac{\left(9x-4y\right)\left(9x+4y\right)}{144}
Rewrite the complete factored expression.
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