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If x+1 is a factor of the polynomial 2...

If `x+1` is a factor of the polynomial `2x^2+k x ,` then `k=` `-2` (b) `-3` (c) 4 (d) 2
If `x+1` is a factor of the polynomial `2x^2+k x,`
`x+1=0,x=-1`
`2(-1)^2+k(-1)=0`
`2-k=0`
`k=2`

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