# If it says 2n! in my book, should I interpret that as (2n)! or 2(n!)?

### 10 Answers

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- Anonymous1 month ago
I think that it should clarify what is meant.

- DixonLv 71 month ago
Factorial only applies to the number it is next to, like powers.

So 2n! = 2 (n!) just like 2x⁷ = 2(x⁷)

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- PuzzlingLv 71 month ago
It should strictly be interpreted as 2(n!) because the factorial takes precedence over the multiplication.

That being said, if you want to describe the exact problem and the context, perhaps with a picture, I could tell you whether they were being sloppy or not.

- llafferLv 71 month ago
If it doesn't have parenthesis anywhere, then only the n has the factorial:

2(n!)

The same logic goes with exponents:

2x²

The 2 is not squared, but here it is:

(2x)²

- 1 month ago
2(n!). If they meant (2n)!, then they should have described it as such.

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