Expand
x^{2}-6x-9y^{2}+9
Evaluate
\left(x-3\right)^{2}-9y^{2}
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x^{2}-6x+9-9y^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-3\right)^{2}.
x^{2}-6x+9-9y^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-3\right)^{2}.
Examples
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Matrix
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Limits
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