Question

if x+1 is a factor of the polynomial 2x²+kr, then the value of k is​

Answer 1

Step-by-step explanation:

Let p(x) = 2x2 + kx

Since, (x + 1) is a factor of p(x), then

p(-1)=0

2(-1)2 + k(-1) = 0

⇒ 2-k = 0 ⇒ k= 2

Hence, the value of k is 2.