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atroni [7]
3 years ago
11

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

Mathematics
1 answer:
sergey [27]3 years ago
7 0
<span>      r+5                 </span><span>r^2+4r-21
</span><span>-------------- /   --------------------
r^2+5r-14               </span><span>r-2

</span>          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)           
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