Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
Henry C
Lv 4
Henry C asked in Science & MathematicsMathematics · 1 decade ago

Solve for X, and check?

√ ̅ x=x

so.. that's the question. What i did is ^2 both sides. so i got x=x^2. I dont know if it's right, please help and explain.

Thanks.

4 Answers

Relevance
  • Mark
    Lv 6
    1 decade ago
    Favorite Answer

    You are sort of correct

    x = x² is logical if x ≥ 0 (and then √x is defined)

    It follows that

    x - x² = 0

    x(1 - x) = 0

    So there are two answers:

    x =0 or x = 1

  • Anonymous
    1 decade ago

    sqrt(x) = x

    x = x^2

    x(1 -x) = 0

    ==> x = 0 or 1 is the solution.

    Checking: sqrt(0) = 0, so that's true

    Checking: sqrt(1) = 1, so that's true

  • Anonymous
    1 decade ago

    x=1. It's the only number that is its own square root.

  • Ravi Chandra Appasani
    1 decade ago

    yeah you are right!!!

Still have questions? Get your answers by asking now.