Explanation
remember the rule to expand the square of a binomial
[tex](a+b)^2=a^2+2ab+b^2[/tex]Step 1
apply the rule to expand the square of a binomial
[tex]\begin{gathered} (x+6)^2 \\ (x+6)^2=x^2+(2\cdot x\cdot6)+6^2 \\ (x+6)^2=x^2+12x+36 \\ \end{gathered}[/tex]I hope this helps you
