RandomHumanBeing
RandomHumanBeing RandomHumanBeing
  • 16-04-2017
  • Mathematics
contestada

if (x+5) is a factor of 3x^2+14x+k, what is the value of k?

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irspow
irspow irspow
  • 16-04-2017
If (x+5) is a factor the equation will equal zero when x=-5 so

3(-5^2)+14(-5)+k=0

75-70+k=0

5+k=0

k=-5

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