Factor
\frac{6xy^{2}-24x-4y^{2}+9yx^{2}}{12}
Evaluate
\frac{xy^{2}}{2}+\frac{3yx^{2}}{4}-\frac{y^{2}}{3}-2x
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\frac{12x^{2}y+24x-4y^{2}-3x^{2}y+6xy^{2}-48x}{12}
Factor out \frac{1}{12}.
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