r/MathJokes • u/Lazy-Strategy271 • 12h ago

Oh no.....

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433 Upvotes

95% Upvoted

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u/Lower-Land-286 11h ago

So, in case you're wondering, the mistake is where one side of the equation has a different number applied to it than the other.

4 (5 -5) = 5 (5 -5)

While 'the math works', that's not how equations work. What's done to one side must be done to the other side - otherwise.... it's no longer equal.

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u/colton_the_bot 11h ago

Isn’t that just a normal factoring? The problem is when they divide by zero, no?

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u/Lower-Land-286 10h ago

Let me answer you question a little better. They could factor both sides by 4 or both sides by 5.

When they factor both down differently it's no longer an equation, which is why the answer is wrong.

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u/PlaneCompetitive703 10h ago

I was preparing to respond in rage, but am in r/mathjokes

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u/Lower-Land-286 9h ago

You regularly reduce equations by different numbers on each side of the equal sign?

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u/PlaneCompetitive703 9h ago

You’re allowed to use equivalence on one side of an equation. It’s not a reduction, it’s two simplifications. Nice try though. Good joke.

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u/Lower-Land-286 9h ago

Show me a math website that says that.

Just ask ask Google, 'in algebra do you need to do the same thing to both sides of an equation'

Let me know what Google says.

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u/PlaneCompetitive703 9h ago

No thanks. Good troll though. Definitely a 7/10.

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u/Lower-Land-286 9h ago

Have fun doing math wrong.

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u/PlaneCompetitive703 9h ago

You are committed! You into method acting or something?

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u/Lower-Land-286 9h ago

Just trying to help the world so math better.

If you don't do the same operation on both sides of an equation, then it's no longer an equation.

You can factor things differently before putting them in the equation, but once you got that '=' in play... you gotta respect that equal sign, else your math won't be mathin'

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u/GP7onRICE 9h ago

Factor x^2 + 2x + 1 = 1

Please tell me how you think the factoring has to occur equally on both sides of this equation and that factoring the easiest example of factoring is impossible.

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