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A quick quiz to test your skill and reflexes? (Best answer gets 10 points)?

Explain what is wrong with this solution (I know the answer just need to see if you do :P)

a^2-a^2=a^2-a^2

so

a*(a-a)=(a-a)*(a+a) / the whole equation gets divided by (a-a)

and then

a= (a+a)

a=2a

1=2

And also if anyone knows some other funny math problems please do post :)

4 個解答

相關度
  • 1 十年前
    最愛解答

    your problem is divide both side by a-a, this is impossible because a-a=0, you can't do that

    Another fun math problem

    Prove that 0.(9) = 1 (0.(9)=0.9999999.....infinite number 9)

  • ?
    Lv 4
    5 年前

    The drink used to be toxic, however the man that drank it speedy had a small component, and the fellow who drank it gradual had a gigantic component... for the reason that you didnt point out the scale of the drink, that is my wager.

  • 1 十年前

    You can't factorize a out of a^2-a^2 to get a(a-a). That is wrong.

  • iceman
    Lv 7
    1 十年前

    a - a = 0 can't divide by zero

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