Question

 if x+1 is a factor of the polynomial 2x^2 + kx, then the value of k is

-2

4

2

-4​

Answer 1

Answer:

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Answer 2

$\huge\sf\pink{Answer}$

☞ Value of k = 2

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$\huge\sf\blue{Given}$

✭ 2x²+kx has (x+1) as a factor

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$\huge\sf\gray{To \:Find}$

◈ The Value of K?

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$\huge\sf\purple{Steps}$

Equating (x+1) with 0,

➝ $\sf x+1 = 0$

➝ $\sf x= -1$

Substituting the value of x in the Equation,

➳ $\sf 2(-1)^2+k(-1) = 0$

➳ $\sf 2-k=0$

➳ $\sf -k = -2$

➳ $\sf\orange{ k = 2}$

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