The rational expression is .

Find the difference.

            (LCM of  is )

FOIL method: the product of two binomials is the sum of the products of the First terms, the Outer terms, the Inner terms and the Last terms.

                               (Foil method)

                            (Group of like terms)

                                                  (Combine like terms) .

Therefore, the difference of the rational expression is .

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