Question

[Hong Vy Nguyen]

Giúp em với ạ em cảm ơn.

Answer 1

[Monkey D. Luffy]

\(\Rightarrow5\left(x+2\right)+4⋮x+2\\ \Rightarrow x+2\inƯ\left(4\right)=\left\{-4;-2;-1;1;2;4\right\}\\ \Rightarrow x\in\left\{-6;-4;-3;-1;0;2\right\}\)

Answer 2

[Phạm Quang Huy]

⇒5(x+2)+4⋮x+2

⇒x+2∈Ư(4)={−4;−2;−1;1;2;4}

⇒x∈{−6;−4;−3;−1;0;2}