Perform the indicated operations and simplify. 3 a − 2 a 2 − 25 − 4 a − 7 a 2 − 25

Question

Perform the indicated operations and simplify.            3      a      −      2                      a                  2                    −      25        −            4      a      −      7                      a                  2                    −      25

Maggie Tanner · Accepted Answer

common denominator is       a          2        −  25 so            3      a      −      2      −      4      a      +      7                      a                  2                    −      25        =            −      a      +      5                      a                  2                    −      25        =            −      (      a      −      5      )              (      a      −      5      )      (      a      +      5      )        =            −      1              a      +      5

Kiana Arias · Accepted Answer

3      a      −      2                      a                  2                    −      25        −            4      a      −      7                      a                  2                    −      25                  3      a      −      2      −      4      a      +      7                      a                  2                    −      25                  −      (      a      −      5      )              (      a      +      5      )      (      a      −      5      )        =            −      1              a      +      5

Perform the indicated operations and simplify. (3a-2)/(a^2 -25)-(4a-7)/(a^2 -25)

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