Răspuns :
Răspuns:
D₂₆= 1; 2; 13 ; 26
x+1=1=>x=0
x+1=2=>x=1
x+1=13=>x=12
x+1=26=>x=25
Răspuns: [tex]\red{\bf x\in \big\{0;~ 1; ~12 ; ~25\big\}}[/tex]
Explicație pas cu pas:
[tex]\bf x+1 \in D_{26}[/tex]
[tex]\bf D_{26}= \{1; 2; 13 ; 26\}[/tex]
[tex]\bf x+1\in \big \{1; 2; 13 ; 26\big\}~~~~~\bigg|-1[/tex]
[tex]\bf x+1-1\in \big\{(1-1); (2-1); (13-1) ; (26-1)\big\}[/tex]
[tex]\red{\boxed{\bf x\in \big\{0;~ 1; ~12 ; ~25\big\}}}[/tex]
==pav38==