x = y

 

x2 = xy

 

x2 - y2 = xy - y2

 

(x + y)(x - y) = y(x - y)

 

x + y = y

 

so,

 

1 + 1 = 1, or 2 = 1

 

Ain't math grand?

Did ya just think of that yourself?

i hate math

3/3 = .9999999

you bring up a school-related subject on a friday night?

 

i scoff at you

 

*scoff*

i hate math

Sorry, I had to do this, the flaw starts in the fourth line. Yes it is true that (x+y)(x-y)=y(x-y). But, since x=y, x-y=0. Therefore, the zero property of multiplication comes into play: any number times zero equals zero. So, you cant say that x+y=y. Thats like saying 100 times 0 equals 0, and 50 times 0 equals 0, therefore 50 and 100 are equal.

Sorry, I had to do this, the flaw starts in the fourth line. Yes it is true that (x+y)(x-y)=y(x-y). But, since x=y, x-y=0. Therefore, the zero property of multiplication comes into play: any number times zero equals zero. So, you cant say that x+y=y. Thats like saying 100 times 0 equals 0, and 50 times 0 equals 0, therefore 50 and 100 are equal.

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yeah my bro pointed that out to me also. :thumbup

Meh, Math is fun if you know what you're doing otherwise it's hell. When I have rational thinkin(word problems and equations). I usually can do well but once you get stuck up I despise the subject.

algebra is quite possibly some of the most fun....i loved it...seriously

78 + 2 = 782

 

Yeah, I can write it but it doesn't mean it's true.

In the infamous words of The Waterboy's Mama:

 

"Math is the DEVIL!!!!!"

3/3 = .9999999

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.9999999 repeating is infamous for being exactly 1. :whistle

Sorry, I had to do this, the flaw starts in the fourth line. Yes it is true that (x+y)(x-y)=y(x-y). But, since x=y, x-y=0. Therefore, the zero property of multiplication comes into play: any number times zero equals zero. So, you cant say that x+y=y. Thats like saying 100 times 0 equals 0, and 50 times 0 equals 0, therefore 50 and 100 are equal.

520294[/snapback]

Glad to see someone else saw this