Question

sa se determine x€ Z astfel incat: a. 7/2x+1 si
b. x/x+2
VA ROOOOOG​

Answer 1

2x+1 apartine divizorilor lui 7

2x+1 € {-7, -1, 1, 7}

2x € € {-8,-2,0,6}

X€ {-4,-1,0,3}