Question

3 is the zero of the polynomial 2x^+x+k find the value of k

Answer 1

Answer:

HEY MATE ANSWER IS -21

Step-by-step explanation:

GIVEN : x = 3

p(x)=2x^2+x+I

p(3)=2(3)^2+3+k

0=2(9)+3+k

0=18+3+k

0=21+k

-21=k