Question

find value of m:if (x+1) is a factor of 2x^3 +x^2 + mx -1​

Answer 1

Answer:

m= -1

Step-by-step explanation:

if x+1 is a factor of equation

than x+1=0

x= -1

put the value of x in given equation

2(-1)³+2(-1)²+m(-1)-1=0

-2+2-m-1=0

-m-1=0

-m=1

m=-1

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