Question

simplifique a expressão (2n+2)!/2n!

Answer 1

Olá!
  
    $\dfrac{(2n+2)!}{2n!}=\dfrac{(2n+2)(2n+1)(2n)!}{2n!}=(2n+2)(2n+1)=\\ \\ \\ = 4n^2+6n+2.$



Bons estudos!