samson17j samson17j

18-01-2020
Mathematics

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

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hationacenaj1 hationacenaj1

18-01-2020

Answer:

x+2=0

x=-2

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

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