Expand
9t^{2}-12tw+4w^{2}
Evaluate
\left(2w-3t\right)^{2}
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4w^{2}-12wt+9t^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2w-3t\right)^{2}.
4w^{2}-12wt+9t^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2w-3t\right)^{2}.
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