Answer:
[tex]2x^{2} + 12x + 9[/tex]
combine like terms:
[tex]2x(x+6) + 9[/tex]
Step-by-step explanation:
square 2x first which gives you 2x^2
then multiply 2 with 2x then again multiply with 3 which is = 2x x 2x3 = 12
then square 3 which gives us 9
= [tex]2x^{2} + 12x + 9[/tex]