• @[email protected]
    link
    fedilink
    English
    -34 months ago

    The square root is always positive, but you can plug it into the quadratic formula to get the two possible values.

      • @Eheran
        link
        English
        14 months ago

        Seems very inaccurate the we can only determine the square root to ±10.

    • @[email protected]
      link
      fedilink
      English
      84 months ago

      There’s no reason to bring the quadratic formula into this. Square roots can be negative, but when talking about the square root it’s normally assumed to be the principal square root, which is the positive one.

    • @[email protected]
      link
      fedilink
      English
      1
      edit-2
      3 months ago

      Nope. To clarify, square roots are the opposite of squaring.

      Now ask yourself:

      What is 10² ?

      What is (-10)² ?

      If you get the same answer, then they are both the roots of the answer. +10 and -10 then gets together called ±10