peacecake17 peacecake17
  • 08-03-2016
  • Mathematics
contestada

log(16+2b) = log(b2- 4b)

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painterjessica1 painterjessica1
  • 08-03-2016
16+2b=b^2-4b 
b^2-6b-16=0 
(b-8)(b+2)=0 
b=8 or -2
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