Question

10. If x+1 is a factor of the polynomial 2x2 + kx +1, then the value of 'k' is
a) - 3
b) -2
c) 3
d)2​

Answer 1

Answer:

3

Step-by-step explanation:

Since x+1 is a factor of this polynomial,

Therefore x=-1 will satisfy the equation.

Therefore,

2x2+kx+1=0

2*(-1)2+(-1)k+1=0

2-k+1=0

3=k

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