Question

daca ( 2 x + 3 ) /6. / înseamnă ,,divide,,
atunci x aparține .........................

Answer 1

2x+3 apartine divizorilor lui 6, adica -6,-1,1,6

1. 2x+3=-6 => x=-9/2
2. 2x+3=-1 => x=-4/2=-2
3.  2x+3=1 => x=-2/2=-1
4. 2x+3=6 => x=3/2

Answer 2

Cred ca este vorba de rezolvarea in Z
$2x+3$∈[tex]D_6=\{-6,-3,-2,-1,1,2,3,6\}\\ [/tex]
2x∈{-3,-6,-3,-4,-2,-1,0,3}
x∈{-3,-2,-1,0}