Haley and her family went on a vacation. To get to the beach, they drove for 3 hours
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Negative exponents work the same as positive ones, except you have to consider the inverse of the base.
So, if for example , in the same fashion you have
So, negative exponents lead to a fraction with numerator 1 and denominator the same expression, but with positive exponent.
So, in your case, let's work with the inner parenthesis first:
Now, if we want to raise this to the negative two, we have