Question

if 2 is one of the zero of the polynomial p(x)=2x²+kx +2 find the value of k​

Answer 1

Answer:

K = (-4)

Step-by-step explanation:

$p(x)=2x^2+kx +2\\p(2)=[2*(2)^2+2(k)+2]=2\\p(2)=[(2*4)+2k+2]=2\\p(2)=8+2k+2=2\\2k+10=2\\2k=2-10\\2k=(-8)\\k=\frac{-8}{2} \\k=(-4)$