raven6498 raven6498
  • 09-12-2016
  • Mathematics
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f(x)=x^2-3x-21 is divided by x+4

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amiyu
amiyu amiyu
  • 09-12-2016
By factor theorem, f(-4)=7,therefore x+4 is not a factor of f..and remainder when decided by x+4 is 7
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