Help Me please... So urgent...

goldensecret · 2010-02-08 00:43:14

if x+xy and y+xy are perfect square, then prove that:
x or y is perfect square

bobbym · 2010-02-08 00:59:52

Hi goldensecret;

There are counter examples to your conjecture if we are dealing with just integers.

when x = -2 and y = -1 and when x = -2 and y = -9

goldensecret · 2010-02-08 01:05:57

Ok... Thanks a lot.... It was so important for me... thanks...

goldensecret · 2010-02-08 01:53:59

can anyone say a counter in positive numbers?

bobbym · 2010-02-08 05:10:17

Hi;

x = 8 and y = 1

goldensecret · 2010-02-08 14:39:39

hi;
but y = 1 is perfect square!

bobbym · 2010-02-08 14:50:56

But not x = 8

goldensecret · 2010-02-08 14:56:01

x <or> y

bobbym · 2010-02-08 15:01:25

Hi goldensecret;

True!! I can't find any. It might hold for x,y = 1,2,3,4...

goldensecret · 2010-02-08 15:02:17

so can you prove that? please...

bobbym · 2010-02-08 15:11:15

Hi goldensecret;

Sorry not yet, I will post if I can get it.

goldensecret · 2010-02-09 04:00:55

thanks so much. im waiting for you...

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