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| Grumpy's Algebraic therory |
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| WRB852:
--- Quote from: fireball on October 01, 2009, 10:12:49 PM ---x=y x^2=y^2 xy=y^2 xy-x^2=y^2-x^2 -x(x-y)=(x+y)(x-y) -x=x+y 2x=y 2x=x 2=1 1=0 No me --- End quote --- you can't divide by zero |
| LaCuckooRacha:
--- Quote from: fireball on October 01, 2009, 10:12:49 PM ---x=y x^2=y^2 xy=y^2 xy-x^2=y^2-x^2 -x(x-y)=(x+y)(x-y) -x=x+y 2x=y 2x=x 2=1 1=0 No me --- End quote --- Lets go through that with numbers x = 2 y = 2 2 = 2 2^2 = 2^2 2 x 2 = 2^2 2 x 2 - 2^2 = 2^2 - 2^2 -2 x (2 - 2) = (2 + 2) x (2 - 2) -2 = (2 + 2) -2 = 4 Really, all you need is; -2 x (2 - 2) = (2 + 2) x (2 - 2) because you can cancel the (2 - 2) from each side, -2 = (2 + 2) Meaning -2 = 4, -3 = 6, -4 = 8 O_o Math class is meaningless. |
| Deep2:
The reason you can't divide by 0 is because zero is not a number. 0 is nothing at all, so how does it make sense to divide something by a non number? It's impossible. |
| Inv3rted:
--- Quote from: Deep2 on October 02, 2009, 11:56:23 AM ---The reason you can't divide by 0 is because zero is not a number. 0 is nothing at all, so how does it make sense to divide something by a non number? It's impossible. --- End quote --- Zero is a number. It's an integer. |
| Deep2:
--- Quote from: Inv3rted on October 02, 2009, 11:58:53 AM ---Zero is a number. It's an integer. --- End quote --- Then how come you can't have a positive OR negative zero? |
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