Factor this expression as a difference of squares.
4-(2a+3b)^2

Question

Factor this expression as a difference of squares.
4-(2a+3b)^2

parthkohli · Answer

We already have half of the answer.

$ \color{Black}{\Rightarrow 2^2 - (2a + 3b)^2}$

$ \color{Black}{\Rightarrow (2 + 2a + 3b)(2 - (2a + 3b))}$

$ \color{Black}{\Rightarrow (2 + 2a + 3b)(2 - 2a - 3b) }$

parthkohli · Answer

Do you get it? @DeaneNicole

anonymous · Answer

To be honest.. No I'm completely lost @ParthKohli

parthkohli · Answer

As you see - $(a + b)( a- b) = a^2 - b^2$

a is 2.
b is 2a + 3b

parthkohli · Answer

$ \color{Black}{\Rightarrow 2^2 - (2a + 3b) = (2 + 2a + 3b)(2 - (2a + 3b))}$

Exactly what I stated above

anonymous · Answer

Oh my gosh I'm so sorry, but, I'm still completely lost. D:

parthkohli · Answer

I have a tutorial for this =) let me post it.

parthkohli · Answer

http://openstudy.com/users/parthkohli#/updates/4fd62be0e4b04bec7f17374c

anonymous · Answer

Okay thank you so much!