Answer:
there is no sign in between the two terms in the parenthese, maybe a google search on the properties of exponents would help because that's what this seems like
Explanation:
Assuming that you tried to write:
we can multiply the 4 on the outside of the parenthesis to all the terms. Multiplying, we get
Because you don't want any negative powers in the top, we can move it down to get:
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