Help! Factor this expression as a difference of squares. (Medal for step by step.)

a^2+4a+4-b^2

Question

Help! Factor this expression as a difference of squares. (Medal for step by step.) 

a^2+4a+4-b^2

anonymous · Answer

I need help too! can you get me more followers :/ I only have like 200

anonymous · Answer

I'll meet you half way :D

anonymous · Answer

Help 4 Help.

anonymous · Answer

haha ok

anonymous · Answer

@xiphoidx could you help meout with my gradpoint im on 2b and it is way to hard

anonymous · Answer

a 2 +4a+4=(a+2) 2  

giving 
(a+2) 2 −b 2  
 and you get get 
(a+2+b)(a+2−b) 
because the difference of squares formula is a^2-b^2=(a+b)(a-b)

anonymous · Answer

it depends on what it is

anonymous · Answer

..What? Where'd the (a+2) 2 and the other numbers come from?

anonymous · Answer

i just started 2b and it is so hard like could you plz help me

anonymous · Answer

a+2)^2 is also a^2+4a+4 if you foil (a+2)(a+2) and then add in that b^2 I forgot to make them exponents