Multiplying factorials with variables

How do you solve this questions?

(x+1)! +[(x+1)*(x+1)!]

I know the answer is supposed to be (x+2)! but I have no idea how to get there.

I tried to apply some rules but it's only getting bigger. Please help!

And please show me some steps.
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1 Answer

RONG...anser=(x+2) faktorial

just fakter the thang & yu get

[(x+1) faktorial]*(x+1+1)

thats (x+2)*[(x+1) faktorial]...& thats (x+2)faktorial
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