Question

(2x+2)! Como faço isso ?
(2x+3)!

Answer 1

$\frac{(2x+2)!}{(2x+3)!} = \frac{(2x+2)!}{(2x+3)\cdot(2x+2)!} =\frac{1}{2x+3}$

Answer 2

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$\frac{(2x+2)!}{(2x+3)!} = \frac{(2x+2)!}{(2x+3)\cdot(2x+2)!} =\frac{1}{2x+3}$