SOLUTION: Please factorise: (a+b)^2-(c+d)^2 I have tried to factorise it my answer is (a+b-c-d)^2 but i'm not sure if it's correct.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please factorise: (a+b)^2-(c+d)^2 I have tried to factorise it my answer is (a+b-c-d)^2 but i'm not sure if it's correct.      Log On


   

Question 953716: Please factorise: (a+b)^2-(c+d)^2
I have tried to factorise it my answer is (a+b-c-d)^2 but i'm not sure if it's correct.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
If you studied and can recognize Difference of Two Squares, then you would know. Otherwise, look at this:

%28x%2By%29%28x-y%29
x%5E2%2Bxy-xy-y%5E2
x%5E2%2B%28xy-xy%29-y%5E2