Factor
\left(x-3\right)\left(x+3\right)u^{2}
Evaluate
u^{2}\left(x^{2}-9\right)
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u^{2}\left(x^{2}-9\right)
Factor out u^{2}.
\left(x-3\right)\left(x+3\right)
Consider x^{2}-9. Rewrite x^{2}-9 as x^{2}-3^{2}. The difference of squares can be factored using the rule: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
u^{2}\left(x-3\right)\left(x+3\right)
Rewrite the complete factored expression.
Examples
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Linear equation
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
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Differentiation
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Integration
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Limits
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