Question

calculați X stiind ca (x+1)|(x+8)​

Answer 1

Explicație pas cu pas:

x+1|x+8

x+1|x+1

Le scadem:

x+1|x+8-x-1 => x+1|7 => x+1€D7 in Z =>

x+1€{-7,-1,1,7} =>

x€{-8,-2,0,6}