Question

Tìm các số nguyên n sao cho 5n+8 chia hết cho n+3

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Cảm ơn:))))

Answer 1

Tk:

https://hoc24.vn/cau-hoi/tim-tat-ca-cac-so-nguyen-n-sao-cho-5n-8-chia-het-cho-n-3-ke-bang-nua-nhe.332999748255

Answer 2

\(\Rightarrow5\left(n+3\right)-7⋮n+3\\ \Rightarrow n+3\inƯ\left(7\right)=\left\{-7;-1;1;7\right\}\\ \Rightarrow n\in\left\{-10;-4;-2;4\right\}\)

Answer 3

\(n\in\left\{-10;-4;-2;4\right\}\)