Question

7. If x+1 is a factor of the polynomial 2x²+K' then the value of 'K' is.....​

Answer 1

Answer:

-2

Step-by-step explanation:

for the polynomial x=-1 is a solution (because x+1 is a factor and hence X=-1 is a solution )

substitute the values in polynomial

p(-1)=0

2(-1)^2+K=0

2+K=0

K=-2