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avatarResponsibleDolphin4222
Secondary I • 7mo.


Hi! I was wondering if someone could help me with me math problems:

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I have trouble with the negative exponents.

Thank you in advance!!

Mathematics
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Explanations (2)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

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      avatarRamzi Zteacher check
      Team Alloprof • 7mo.

      Hi !

      You can use the laws of exponents.


      https://www.alloprof.qc.ca/en/students/vl/mathematics/laws-exponents-m1044


      Any base raised to a negative exponent is equivalent to the inverse of the base raised to a positive exponent. In you case :

      $$ 4^{-1}=\frac{1}{4^1} $$

      $$ 4^{-2}=\frac{1}{4^2} $$

      Et ainsi de suite. Je te laisse compléter l'exercice par toi-même et si tu as d'autres questions, n'hésite pas !

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        avatarElfeAdorable9259
        Grade 3 • 7mo.

        Hello! So, for example, if you want to calculate 20 exponent -5, what you have to do is: -20 x -20 x -20 x -20 x -20 = 200000.

      Québec RioTinto Desjardins Pathy TROTTIER OTHER
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