Question

X+1 is a factor of 2x2+kx​

Answer 1

Answer:

x= -1

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

2 - k= 0

k= 2

Answer 2

g(x)=0

x-1=0

x=-1

p(x)=2x²+kx

p(-1)=2(-1)²+k(-1)

p(-1)=2-k

2-k=0

-k=-2

k=2