Question

Questao de fatorial:
$\frac{(x+1)! + x!}{x!} =11$

Answer 1

Olá,

$\frac{(x+1)!+x!}{x!} = 11\\\\ \frac{(x+1)*x!+x!}{x!} = 11 \\\\ \frac{x![(x+1)+1]}{x!} = 11\\\\ (x+1) + 1 = 11 \\ x + 2 = 11 \\ x = 11 - 2 \\ x = 9$

Bons estudos ;)