Question 100250
Correct, because:
{{{(2x^2 + 6x+(6/2)^2)}}} = {{{(4+(6/2)^2))}}}
{{{(2x^2 + 6x+(3)^2)}}} = {{{(4+(3)^2))}}}
{{{(2x^2 + 6x+(3)^2)}}} = {{{(4+9))}}}