M
mariosuper1998


cho a,b,x,y la cac so thuc thoa man
$x+y=a+b$
$x^3+y^3=a^3+b^3$
c/m:
$x^{2013}+y^{2013}=a^{2013}+b^{2013}$
minh dang thanks nhieu
$x+y=a+b$
$x^3+y^3=a^3+b^3$
c/m:
$x^{2013}+y^{2013}=a^{2013}+b^{2013}$
minh dang thanks nhieu
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