The problem
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Hello. Why was 1 subtracted from the exponent 3 on the numerator in step 3. Where did the 1 come from?
Answer provided by our tutors
We need to reduce this fraction to the lowest terms thus we divide the numerator and the denominator by 2 by using the general rule:
In our case, a = 2, x = 3 and y =1:
Also, keep in mind that clicking on the step will provide additional explanation:
