The given quadratic equation is,
[tex]x^2+4x+3=0[/tex]Here, the coeficients are,
[tex]\begin{gathered} a=1 \\ b=4 \\ c=3 \end{gathered}[/tex]Consider the quadratic equation and to complete the square we have the condition,
[tex]\begin{gathered} d=\frac{b}{2a}=\frac{4}{2}=2 \\ e=c-\frac{b^2}{4a} \end{gathered}[/tex]
