Question

If x + 1 is a factor of the polynomial 2x2 + kx, then the value of k is: *

1 point​

Answer 1

Answer:

we have to find k x+1=0 x=-1. by putting value of x we find the value of k 2{-1)1+k{-1) k=-2

Answer 2

2x^2+Kx

x+1=0

x=-1

p(-1)= 2x^2+Kx

2×(-1)^2+k×(-1)=0

2-k=0

hence ,k = 2