Question

22 divizibil cu (x-1)

Answer 1

22 / (x-1) si 22=1x2x11

x-1=1=>x=2

x-1=2=>x=3

x-1=11=>x=12

x-1=22=>x=23

x∈{2,3,12,23}

Answer 2

x-1=1=》x=2. x-1=1=》x=3