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Can someone confirm that this answer is correct?

Can someone confirm that this answer is correct?
asked 55.5k views
3 votes
Can someone confirm that this answer is correct?

Can someone confirm that this answer is correct?-example-1
asked
User Pkh
by
7.8k points

1 Answer

5 votes

You are correct, but I would remove the x and answer it with them connected. It looks like you want the x to be distributed, which would be wrong.

It should look more like:


20(n+1)(n-1)

answered
User Joellen
by
8.8k points
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