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You are not logged in. #2 20071228 20:47:04
Re: find all real x,yI can think of only one solution right away. Character is who you are when no one is looking. #3 20071229 02:57:33
Re: find all real x,yIf you multiply the LHS of the first equation by , it becomes . HenceBecause the equations are symmetrical in x and y, you know that the answer must be in the form x = y. Therefore (x=1 is rejected; it came into the working because I multiplied both sides of the first equation by .) 