find integer solutions, if any exist to 3x^3 + 7y^2 = 2,

thanks for any help

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- May 16th 2010, 10:26 AMhmmmminteger solutons
find integer solutions, if any exist to 3x^3 + 7y^2 = 2,

thanks for any help - May 16th 2010, 10:30 AMroninpro
Take the equation modulo 3.

$\displaystyle 3x^3+7y^2\equiv y^2\equiv 2\pmod{3}$

Anything wrong with this? - May 16th 2010, 12:58 PMhmmmm
ah thanks very much for that