Practice Problems

Answers

  1. This is the definition for negative exponents:

    \(x^{-n}=\dfrac{1}{x^n}\)

    \(x^{-6}=\dfrac{1}{x^{6}}\)

  2. This is the definition for negative exponents:

    \(x^{-n}=\dfrac{1}{x^n}\)

    \(2^{-4}=\dfrac{1}{2^{4}}\)

  3. This is the definition for negative exponents:

    \(x^{-n}=\dfrac{1}{x^n}\)

    Applying the definition in the reverse direction, we get

    \(\dfrac{1}{a^7}=a^{-7}\)

  4. This is the definition for negative exponents:

    \(x^{-n}=\dfrac{1}{x^n}\)

    Applying the definition in the reverse direction, we get:

    \(\dfrac{1}{9^{2}}=9^{-{2}}\)