Prove that no number of form 4k+3 (where K is a positive integer) can ever be the sum of two perfect squares. Hint: think about adding two perfect squares.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter5: Factoring Polynomials
Section5.7: Factoring Pattern For X2+bx+c, C Positive
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Prove that no number of form 4k+3 (where K is a positive integer) can ever be the sum of two perfect squares. Hint: think about adding two perfect squares.  

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