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d1i1m1o1n [39]
3 years ago
12

Simplify the function..........

Mathematics
1 answer:
andre [41]3 years ago
6 0
      7ab               a - b
--------------  -  --------------
a^2 - b^2            a + b

      7ab                 a - b
= --------------  -  --------------
  (a-b)(a+b)           a + b

      7ab                 (a - b)^2
= --------------  -  -----------------------
  (a-b)(a+b)           (a + b)(a-b)

      7ab                 a^2 - 2ab + b^2
= --------------  -  -----------------------
  (a-b)(a+b)           (a + b)(a-b)

      7ab - a^2 + 2ab -  b^2        
= -----------------------------------
                (a-b)(a+b)  

      - a^2 + 9ab -  b^2        
= -----------------------------------
                (a-b)(a+b)      

Answer is A. first one         
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94

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