2x^2 – x -3         3x^2 – 11x – 20 

       _______________  *   _________________    

        3x^2 + 7x + 4           4x^2 - 9





FActor both numerators and denominators



       (2x - 3)(x + 1)         (3x + 4)(x - 5)

       ________________   *   ___________________

       (3x + 4)(x + 1)         (2x - 3)(2x + 3)







Divide the greatest common factors



                (x - 5)

       ________________   *   _________________

                (2x + 3)









         x - 5

       _________

         2x + 3









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