Question

escreva as expressões em termos de 4! :

Answer 1

$x = \dfrac{7! - 5!}{4} \\ \\ \\ x= \dfrac{5070-120}{4} \\ \\ \\ x = \dfrac{4920}{4} \\ \\ \\ x = 1230$

Answer 2

$\frac{7!-5!}{4} = \frac{5040-120}{4} = \frac{4920}{4} = 1230$