Expand
49s^{2}-42s+9
Evaluate
\left(7s-3\right)^{2}
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49s^{2}-42s+9
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(7s-3\right)^{2}.
49s^{2}-42s+9
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(7s-3\right)^{2}.
Examples
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Matrix
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Limits
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