Q. 165.0( 2 Votes )

If x+1 is a factor if the polynomial 2x2+kx, then k =
A. -2

B. -3

C. 4

D. 2

Answer :

Let, f (x) = 2x2 + kx

Since, x + 1 is divided by f (x) so,


f (-1)=0


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


k = 2

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