The problem
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I don't understand how it became 2 to the 4th power
Answer provided by our tutors
We need to reduce this fraction to the lowest terms. This can be done by dividing out those factors that appear both in the numerator and in the denominator.
In our example, this is the common factor 2, so 2^5 divided by 2 is 2^4:
Keep in mind that you can obtain an explanation for any step by clicking on it. Please note that you cannot click on the very first expression, which is the original problem.