Math

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In Simplifying 7 to the 11th power and 7 to the 9th power, Alexis decides to use her calculator to find 7 to the 11th power and 7 to the 9th power indiviually before dividing. Show how Alexis could use the laws of exponents to arrive at the answer more easily.

  • Math -

    assume you are doing
    7^11
    ------
    7^9

    Which is
    7^9 * 7^2
    ----------
    7^9

    so 7^2
    which is 49

    to multiply, add exponents
    to divide, subtract exponents
    to raise to power, multiply exponents

  • Math -

    thanks so much

  • Math -

    You are welcome !

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