Question

For what value of k is -5/3 a zero of the polynomial 3x×x+kx+5?

Answer 1

Step-by-step explanation:

p(x)=3x*x+kx+5

p(-5/3)=3(-5/3*-5/3)+k(-5/3)+5

=25/3 - 5/3k +5

=40/3 -5/3k=0

=-5/3k = -40/3

=k=(-40/3) /(-5/3)

=k=8