divide r+5/r^2+5r-14 by r^2+4r-21/r-2

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03-02-2017
Mathematics

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divide r+5/r^2+5r-14 by r^2+4r-21/r-2

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Anonymous Anonymous · Answer 1 · 2017-02-03T14:14:35-05:00

r+5   r^2+4r-21
-------------- / --------------------
r^2+5r-14   r-2

r+5 r-2
= -------------- x --------------------
r^2+5r-14 r^2+4r-21

  r+5   r-2
= -------------- x   --------------------
  (r+7)(r-2) (r+7)(r-3)

  r+5
= -----------------
  (r+7)^2 (r-3)