You can put this solution on YOUR website!
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Let's work the denominator first. A quantity with a negative exponent can be changed to
have a positive exponent when it is divided into 1. So the denominator
is equal to
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Now in the denominator of this fraction you can cube the (-3) to get -27. So now the denominator
of the original problem can be written as and the original problem has been
converted to:
.
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We are dividing 4 by the fraction . But the rule is that when dividing
by a fraction you invert that fraction and multiply it times the quantity being divided.
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When we invert it becomes or just -27. So we multiply 4 by -27
to get the answer of -108.
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That's the answer to this problem ... -108.
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Hope that this helps you see how to handle negative exponents and how to divide by fractions.
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