Question

If x+1is a factor of polynomial 2xsquare+kx then the value of k

Answer 1

Answer:

k = 2

Step-by-step explanation:

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

____________________

⇒ x + 1 is a factor

  x + 1 = 0

  x = -1

put x = -1,

2x² + kx = 0

2(-1)² + k(-1) = 0

2(1) - k = 0

2 - k = 0

k = 2

Answer 2

Given quadratic equation 2x^2+kx is a factor of (x+1)

x+1=0

x= -1

Substitute value x in the given equation..............

2(-1)^2-k=0

2-k=0

k=2