Huỳnh Anh Phương
09/07/2018 at 11:13-
Because x,y are positive integers and \(x\times y=8\)
=> \(\left\{{}\begin{matrix}x=1;y=8\\x=2;y=4\\x=4;y=2\\x=8;y=1\end{matrix}\right.\)
Because \(x^y=y^x\)
=> \(\left\{{}\begin{matrix}x=2;y=4\\x=4;y=2\end{matrix}\right.\)
Huỳnh Anh Phương selected this answer. -
Kalila Thao Van 30/01/2019 at 06:05
i think the first x and y are 2 . the second i don't do it