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show that if x, y, z are integers such that x^3+5y^3 = 25z^3, then x = y = 0.

 May 19, 2020
 #1
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If x,y, and z were other integers then it would not satisfy the equation. x=y=z=0

 May 19, 2020
edited by NightShade  May 19, 2020
edited by NightShade  May 19, 2020
edited by NightShade  May 19, 2020
edited by NightShade  May 19, 2020
 #2
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how do i prove that?

Guest May 19, 2020
 #3
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If all have the same degree and if real numbers a,b, and c are the coefficients and c does not equal a and b or any other inequality, then one of the numbers will always exceed the others.

NightShade  May 19, 2020
 #4
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thanks

Guest May 19, 2020

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