samson17j
samson17j samson17j
  • 18-01-2020
  • Mathematics
contestada

find the value for m for which ( x + 2 ) is a factor of p ( x ) = x cube + 2x + 3m​

Respuesta :

hationacenaj1
hationacenaj1 hationacenaj1
  • 18-01-2020

Answer:

x+2=0

x=-2

  1. p(-2)=-2in force 3 +2(-2)+3m=0
  2. -8-4+3m=0
  3. -12+3m=0
  4. 3m=12
  5. m=4
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