Question

Daca x+1|x+8 cat e x​

Answer 1

Explicație pas cu pas:

x+1|x+8(1)

x+1|x+1(2)

(1)(2)=> x+1|x+8-x-1 => x+1|7 => x+1€D7 inZ =>

x+1€{-7,-1,1,7} =>

x€{-8,-2,0,6}