Question

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

Answer 1

We already have half of the answer.

\( \color{Black}{\Rightarrow 2^2 - (2a + 3b)^2}\)

\( \color{Black}{\Rightarrow (2 + 2a + 3b)(2 - (2a + 3b))}\)

\( \color{Black}{\Rightarrow (2 + 2a + 3b)(2 - 2a - 3b) }\)

Answer 2

Do you get it? @DeaneNicole

Answer 3

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

Answer 4

As you see - \((a + b)( a- b) = a^2 - b^2\)

a is 2.
b is 2a + 3b

Answer 5

\( \color{Black}{\Rightarrow 2^2 - (2a + 3b) = (2 + 2a + 3b)(2 - (2a + 3b))}\)

Exactly what I stated above

Answer 6

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

Answer 7

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

Answer 8

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

Answer 9

Okay thank you so much!