Square and square roots

Ejemplos
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Lecciones
  1. Understanding the negative square roots of the following
    1. 225 \sqrt{225}           −225 -\sqrt{225}           −225 \sqrt{-225}
  2. Find the square roots
    1. 64 \sqrt{64}
    2. −676-\sqrt{676}
    3. −81 \sqrt{-81}