Factor
\left(9ab-5\right)\left(81a^{2}b^{2}+45ab+25\right)
Evaluate
729\left(ab\right)^{3}-125
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\left(9ab-5\right)\left(81a^{2}b^{2}+45ab+25\right)
Rewrite 729a^{3}b^{3}-125 as \left(9ab\right)^{3}-5^{3}. The difference of cubes can be factored using the rule: p^{3}-q^{3}=\left(p-q\right)\left(p^{2}+pq+q^{2}\right).
Examples
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Matrix
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Simultaneous equation
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Limits
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