Question

For wht value of k ,3 is a zero of the polynomialv2x²+x+k?

Answer 1

P(3)=2(3)2+(3)+k=

5(9)+3k=

45+3k=

3k=-45

k=-45/3

k=-15

Answer 2

since 3 is a zero of

f(x) = 2x² +x+k

so f(3)=0

so 2*3² + 3 + K = 0

=> 2*9 + 3 + K =0

=> 21 + K =0

=>K = -21

hope it helps mark as brainliest