show that if x, y, z are integers such that x^3+5y^3 = 25z^3, then x = y = 0.
If x,y, and z were other integers then it would not satisfy the equation. x=y=z=0
how do i prove that?
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.
thanks
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