Question 610477:  5^2 + 12^2 = 13^2 
25 + 144 = 169 
169 = 169 I understand the mathwork involved in Pathagorean Triples and Theorems, but I am having trouble with my assignment. The assignment says to find a method or formula outside of my textbook and generate five pathagorean triples. I need to confirm validity of these pythagorean triples using the pythagorean theorem formula: a2 + b2 = c2, but Please remember that  a2 + b2 = c2 is NOT the formula you're looking for to generate the triples with, it is only to verify each of the 
triples (at least 5). I am confused plz help me. 
 Answer by scott8148(6628)      (Show Source): 
You can  put this solution on YOUR website! a^2 + b^2 - 2b^2 = a^2 - b^2 = (a + b)(a - b)
 
 
a^2 + b^2 - 2b^2 = c^2 - 2b^2
 
 
(a + b)(a - b) = c^2 - 2b^2 ___ (a + b)(a - b) + 2b^2 = c^2
 
 
the sum times the difference, plus twice the smaller squared; equals a perfect square
 
 
 
this will work, but I'm sure there must be other methods 
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