October 20, 2016

Homework Help: equations

Posted by help pls on Wednesday, May 22, 2013 at 10:06pm.

solve for x and y

and x^x + y^y = 31

i have found x,y = 2,3 or 3,2
but i got the answer by merely substituting the values...
is there any proper way to find x and y??

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