Evaluate
4\left(4a-b\right)^{2}
Expand
64a^{2}-32ab+4b^{2}
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64a^{2}-32ab+4b^{2}
Use binomial theorem \left(p-q\right)^{2}=p^{2}-2pq+q^{2} to expand \left(8a-2b\right)^{2}.
64a^{2}-32ab+4b^{2}
Use binomial theorem \left(p-q\right)^{2}=p^{2}-2pq+q^{2} to expand \left(8a-2b\right)^{2}.
Examples
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