Question

If (x-3) is a factor of the polynomial (2x²+x+k), find k
please Answer this I'll mark as brainliest​

Answer 1

Answer:

-21

Step-by-step explanation:

zero of the polynomial x-3 is 3

So,

p(x)=(2x²+x+k)=0

p(3)=[2(3)²+3+k]=0

p(3)=[2(9)+3+k]=0

p(3)=18+3+k=0

p(3)=21+k=0

p(3)=k=0-21

p(3)=k=-21

Answer 2

Hey mate!!!

In answer there is x instead of k and nothing....