Help me factor this? 2x^2+24x+72

Help! (:

2x^2+24x+72
=2(x^2+12x+36)
=2[(x+6)(x+6)]
=2(x+6)^2

2(x+6)^2
see step by step solution:
http://symbolab.com/solutions/factor_qua…

They're all even numbers, so you can pull out a factor of 2.

2(x^2 + 12x + 36)

Do you know how to factor that thing in parentheses? It's a perfect square.