SOLUTION: Please help me solve this. Thank You In Advance (a-b+c-d)(a+b-c-d)

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Question 1177995: Please help me solve this. Thank You In Advance
(a-b+c-d)(a+b-c-d)

Found 2 solutions by MathLover1, greenestamps:
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

multiply each term of the first polynomial by each term of the second polynomial




Answer by greenestamps(13200)   (Show Source): You can put this solution on YOUR website!


Again if you look at the given expression carefully, there is a path to the answer with much less work than shown by the other tutor.

By rearranging the terms...



This is in the form (A-B)(A+B) = A^2-B^2. So



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