Discussion
| Column A |
(x + y)2 = 24 x2 + y2 = 12 |
Column B |
| xy | 5 |
| (A) | Column A is larger |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 05/25/2012 18:56
Where did the 2xy come from to start the equation?
Posted: 05/29/2012 13:52
Thad, that's simply a result of squaring (x + y)
(x + y)^2 = (x + y)(x + y) = x^2 + y^2 + xy + xy = x^2 + y^2 + 2xy
(x + y)^2 = (x + y)(x + y) = x^2 + y^2 + xy + xy = x^2 + y^2 + 2xy
Posted: 07/18/2012 16:57
I really hope there is an update soon that fixes a lot of these formatting issues. It's really hard to read the problems right now and causing a lot of wasted time.
Posted: 07/18/2012 16:58
Ss
Posted: 07/18/2012 17:54
Thanks for the input Cef Usa. An update is coming in a few weeks. If there's anything specific about the question you are confused, please post a question.
Posted: 07/18/2012 18:18
Here is an image of better formatted question.
