Evaluate
\frac{\left(4x+3\right)^{2}}{144}
Expand
\frac{x^{2}}{9}+\frac{x}{6}+\frac{1}{16}
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\frac{1}{9}x^{2}+\frac{1}{6}x+\frac{1}{16}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(-\frac{1}{3}x-\frac{1}{4}\right)^{2}.
\frac{1}{9}x^{2}+\frac{1}{6}x+\frac{1}{16}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(-\frac{1}{3}x-\frac{1}{4}\right)^{2}.
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