[tex]\bf \cfrac{x^2-x-6}{4x^3}\cdot \cfrac{2x^2+2x}{x^2+5x+6}\implies \cfrac{(x-3)\underline{(x+2)}}{\underline{2x}(2x^2)}\cdot \cfrac{\underline{2x}(x+1)}{(x+3)\underline{(x+2)}}
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\cfrac{x-3}{2x^2}\cdot \cfrac{x+1}{x+3}\implies \cfrac{\stackrel{FOIL}{x^2-2x-3}}{2x^3+6x^2}[/tex]
