If x + 1 is a factor of polynomial 2x^2 + Kx
If x + 1 is a factor of polynomial 2x2 + Kx then the value of K is
A) -4
B) -2
C) 2
D) +4
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Correct option is (C) 2
\(\because\) \(x+1\) is a factor of polynomial \(2x^2+Kx.\)
\(\therefore\) x = -1 is a zero of polynomial \(2x^2+Kx.\)
\(\therefore\) \(2\times(-1)^2+K\times-1=0\)
\(\Rightarrow\) K = 2
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