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12-86.

Factor and simplify each expression below. Homework Help ✎

  1. Factor and then reduce.

  2. For the numerator, what numbers multiply to and add to ?

    Put these numbers in a generic rectangle (these create your "middle term") along with the first and last terms.
    Now find the greatest common factors of each row and column.

    See the generic rectangle.

    Now factor the denominator and simplify.