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Old 2021-11-18, 16:16   #7
Dr Sardonicus
 
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Feb 2017
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Quote:
Originally Posted by RomanM View Post
Quote:
Originally Posted by RomanM View Post
(2x^{3}+y^{3})^{2}\equiv y^{6}\; mod\;x^{2}(x^{3}+y^{3}); \; y\neq0,\; x,y\in Z
Quote:
Originally Posted by Dr Sardonicus View Post
Factor (2x3 + y3)2 - y6 as the difference of two squares.
And what?
And you'll see that the congruence you asked about holds as a polynomial congruence (mod x2(x3 + y3)).
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