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Sauron [17]
3 years ago
11

X^2+x-2/1-x^2 ÷ 2x^2-6x-20/x^2-4x-5

Mathematics
1 answer:
ad-work [718]3 years ago
7 0
<span>X^2+x-2/1-x^2 ÷ 2x^2-6x-20/x^2-4x-5

   (x + 2)(x - 1)           (x - 5)(x + 1)
= ------------------- *  ---------------------
   (1 + x)(1- x)           2(x + 2)(x - 5)

</span>    (x - 1)        
= ----------
   2(1- x)    

    - (1 - x)        
= -------------
     2(1 - x)    

= -1/2

answer
-1/2 
   
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