a = b <--- Set a equal to b
a^2 = ab <--- Multiply each side by a
a^2 - b^2 = ab - b^2 <--- Subtract b^2 from each side
(a + b)(a - b) = b(a - b) <--- Factor each side
a + b = b <--- Each side has (a - b) in common, so divide each side by (a - b)
b + b = b <---Replace the a with b, since a = b
2b = b <--- Combine like terms
2 = 1 <--- Divide each side by b to get 2 = 1
See if you can spot the error made here, noting in which line the error occurs, and what the error is. It took me a while to figure it out when I first saw it in 9th grade, but someone will most likely figure it out pretty quickly.
EDIT:
Zeal sucks at math lolol. He thinks anything divided by zero equals infinity
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crazy shit happens when you divide by zero
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A ≠ B ever! Its impossible. Math laws forbid that from happening. Although its possible for A = B^2 or visa versa.
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Edited by Zeal: 10/2/2014 1:52:41 PMOkay. Too many nooblets here talking about dividing by Zero. That isn't the issue and this isn't how algebra should be done. So I'll keep it simple. He multiplied by zero. A-b is multiplied to both sides. To make it more clear lets do it backwards. a+b =b (a+b)(a-b)=b(a-b) A^2-b^2=ab-b^2 A^2=ab A=b. Please none of you follow a career in anything related to maths. Why do you think that in the end both b and a equal zero? A+b=b A=0 B=b+b B=0. [spoiler]drops mic. I'm out[/spoiler]
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you lost me at a = b <--- Set a equal to b
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(Brain explodes do to too much math)
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Edited by dimondsaddle: 10/2/2014 9:55:02 PMYou can't divide by zero (A-b)
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U wot m8?
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My math tutor sprung this on us first day The class was -blam!-ed up ten minutes But you divided by a zero somewhere in there so it doesn't work :P
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Let me put some zeros in your zeros
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ABCDEFGHIJKLMNOPQRSTUVWXYZ Solved
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[i]Bob.exe has stopped working[/i]
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If a=b, then (a-b)=zero. It is impossible to divide by zero.
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Eye alrady knw dis cuz am vary smurt
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Fuk you SCIENCE!! (flips off the board, flips of the class, jizzes on the hot female teacher, and walks out to explosions fuking guns blazing)
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Why did you divide by ze-
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Can't handle it. Nope. Im done. Peace.
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Loomynarty confirmed m8s
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Fun fact anything divided by zero is [spoiler]infinity, oh shit it can be done[/spoiler] Did anyone else realise they tell you you can't do things in maths in high school and then the year later they tell you that you actually can?
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What does the ^ mean?
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ITT: some asshole in the comments takes this thread too seriously
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[quote]Subtract b^2[/quote] You have to add to both sides, not subtract.
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[i]SpaceWolf.exe has crashed[/i]
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you can't divide by zero, asshole
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Edited by MetalMario137: 10/2/2014 11:39:22 AM
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Maaathhhss!!!! Kill it KILL IT!!!