Question

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

Answer 1

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