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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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#1 2014-01-27 09:14:55

bronxsystem
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basic equation help super easy

hey all i dont know what im missing here ):



i thought we first square everything



then subtract 2



then divide by 4

but i get wrong answer. what did i do wrong ><

#2 2014-01-27 09:31:50

bobbym
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Re: basic equation help super easy

Hi;

The mistake is in your second step

It should be


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#3 2014-01-27 09:38:43

bronxsystem
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Re: basic equation help super easy

thank you makes sense i was completely stuck

#4 2014-01-27 09:46:43

bobbym
Administrator

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Re: basic equation help super easy

Hi;

Okay, if you need help post back.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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