Question

if x+1 is a factor of polynomial 5+kx, then the value of k is?​

Answer 1

Step-by-step explanation:

x+1=0 =>x=-1

let p(x)= 5+kx

p(-1)=5+k(-1)

p(-1)=5-k

x+1 is a factor of p(x)

so, p(-1) is 0

5-k=0

5=k

Answer 2

x + 1 = 0

x = -1

then ,

5(-1)² + k(-1) = 0

5 - k = 0

k = 5