Factor
\frac{3x^{4}-9x^{2}-4x+12}{2}
Evaluate
\frac{3x^{4}}{2}-\frac{9x^{2}}{2}-2x+6
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\frac{2\int _{-2}^{1}\frac{1}{2}\mathrm{d}xx^{4}-9x^{2}-4x+12}{2}
Factor out \frac{1}{2}.
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