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
gothchic
gothchic asked in Science & MathematicsMathematics · 1 decade ago

solve sqrt x+5 = sqrt x^2-15?

I need help. I'll give you best answer points!!

2 Answers

Relevance
  • Lizy L
    1 decade ago
    Favorite Answer

    square both sides

    x+5 = x^2 - 15

    x^2 - x - 20 = 0

    x^2 -5x + 4x - 20 = 0

    (x-5) ( x+4) = 0

    x = +5 or x = -4

  • Sylar
    1 decade ago

    square both the sides.

    x+5=x^2-15

    x^2-x-20=0

    (x-5)(x+4)=0

    x=5 or x=-4

Still have questions? Get your answers by asking now.