Question

what is the answer of this question ​

Answer 1

Answer: a ÷  a to the power of -1 -2

Explanation: If you write it in the simple way, it will be like this: a to the power of -1 minus 1 divided by a -1.

If you regroup all the similar terms, it will be the -1 and the -1 and that'll make -2. a to the power of -1 and a are not the same because the exponent are not the same (-1 and 1). So that leaves us with the a's and -2. Then all you need is to make the numbers in chronical order. Note: I am 2nd year high school and this is what I learned until now so if this is wrong, please do not delete it and make some corrections for me. Thanks.