Question

Ex 3 punctul b va roooooooooooooooooog​

Answer 1

Explicație pas cu pas:

5x+8/2x-1€Z <=>2x-1|5x+8

2x-1|5x+8=>2x-1|10x+16

2x-1|2x-1=>2x-1|10x-5

Le scadem:

2x-1|10x+16-10x+5=>2x-1|21 <=>2x-1€D21 in Z=>

2x-1€{-21,-7,-3,-1,1,3,7,21} =>

2x€{-20,-6,-2,0,2,4,8,22} =>

x€{-10,-3,-1,0,1,2,4,11}