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wu :: forums    riddles    medium (Moderators: Grimbal, towr, ThudnBlunder, Eigenray, Icarus, SMQ, william wu)    find x and y « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: find x and y  (Read 497 times) tony123 Junior Member     Posts: 61 find x and y   « on: Feb 28th, 2008, 2:59pm » Quote Modify If x+xy+x y^2=7   x^3+(x^3)( y^3)+(x^3)( y^6)=73   find x and y IP Logged ThudnBlunder wu::riddles Moderator Uberpuzzler The dewdrop slides into the shining Sea     Gender: Posts: 4489 Re: find x and y   « Reply #1 on: Feb 28th, 2008, 3:16pm » Quote Modify x = 1 y = 2 IP Logged THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you. Eigenray wu::riddles Moderator Uberpuzzler     Gender: Posts: 1948 Re: find x and y   « Reply #2 on: Feb 28th, 2008, 4:34pm » Quote Modify Actually for any solution (x,y) there'll be another solution (x', 1/y) (for any values of 7 and 73).   Hmm, by any chance should that 73 actually be a 73?  Would make it a lot nicer. « Last Edit: Feb 28th, 2008, 4:35pm by Eigenray » IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy => medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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