Question

if the solution of,2xsq+px+4=0 is 2. what is the value of p​

Answer 1

p(x) = 2x²+px +4 =0

p(2) = 2×2² +p×2 +4 =0

8+2p+4 =0

2p+12 =0

2p = -12

p= -6