Evaluate
\frac{9\left(2t-1\right)^{2}}{4}
Expand
9t^{2}-9t+\frac{9}{4}
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9t^{2}-9t+\frac{9}{4}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(3t-\frac{3}{2}\right)^{2}.
9t^{2}-9t+\frac{9}{4}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(3t-\frac{3}{2}\right)^{2}.
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