Reason for Incorrect Algebraic Equation?

Thread starter HussanAli
Start date Aug 11, 2009
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AI Thread Summary

The first equation presented in the discussion is identified as incorrect algebra, while the second is deemed true. A numerical example is provided to illustrate the error, specifically using the equation 2 + 5 = 7. When applying the first equation's logic, the calculation 2^2 + 5^2 = 7^2 is shown to be false. This highlights the fundamental misunderstanding in the algebraic manipulation. The discussion emphasizes the importance of verifying algebraic equations for accuracy.

Aug 11, 2009

HussanAli

The first equation is false whil second is true. What is reason?

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Aug 11, 2009

Pengwuino

Gold Member

http://en.wikipedia.org/wiki/Freshman's_dream

hehe.

Aug 11, 2009

Fightfish

The first equation is simply wrong algebra. An easy way to illustrate this would be via a numerical example.
Consider: 2 + 5 = 7
Following your first equation, you would obtain 2^2 + 5^2 = 7^2, which is clearly incorrect.

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