Factor
\frac{\left(18x-35y\right)\left(18x+35y\right)}{900}
Evaluate
\frac{9x^{2}}{25}-\frac{49y^{2}}{36}
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\frac{324x^{2}-1225y^{2}}{900}
Factor out \frac{1}{900}.
\left(18x-35y\right)\left(18x+35y\right)
Consider 324x^{2}-1225y^{2}. Rewrite 324x^{2}-1225y^{2} as \left(18x\right)^{2}-\left(35y\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(18x-35y\right)\left(18x+35y\right)}{900}
Rewrite the complete factored expression.
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