Answer:
2(x+2)^2-5
Step-by-step explanation:
2(x+p)^2+q
=2(x^2+2px+q^2)+q
=2x^2+4px+2p^2+q
Comparing coefficients with the 2x^2+8x+3
4p=8, p=2
2p^2+q=3, Solving for q given p, q=-5
Substituting values of p and q,