Factor
\left(-7ab-1\right)\left(7ab-1\right)
Evaluate
1-49\left(ab\right)^{2}
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\left(1-7ab\right)\left(1+7ab\right)
Rewrite 1-49a^{2}b^{2} as 1^{2}-\left(7ab\right)^{2}. The difference of squares can be factored using the rule: p^{2}-q^{2}=\left(p-q\right)\left(p+q\right).
\left(-7ab+1\right)\left(7ab+1\right)
Reorder the terms.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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