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Add or subtract the following rational expressions. Be sure to look for factors before trying to determine a common denominator, and simplify your answers, if possible.

  1. This is addition of fractions. What are the steps for adding fractions?


    To make common denominators, multiply the second term by the Giant One below.

    Giant one: quantity, x, + 2, divided by quantity, x, + 2.

    Add the numerators and keep the denominators the same.

  1. Refer to part (a).