Factor
\frac{\left(6x-7\right)\left(6x+7\right)}{81}
Evaluate
\frac{4x^{2}}{9}-\frac{49}{81}
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\frac{36x^{2}-49}{81}
Factor out \frac{1}{81}.
\left(6x-7\right)\left(6x+7\right)
Consider 36x^{2}-49. Rewrite 36x^{2}-49 as \left(6x\right)^{2}-7^{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(6x-7\right)\left(6x+7\right)}{81}
Rewrite the complete factored expression.
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Limits
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