Question

[NGUYỄN THÁI BẢO]

x trừ 5 là ươc của 10

Answer 1

[Hquynh]

\(x-5\inƯ\left(10\right)\\ Ư\left(10\right)=\left\{1;-1;2;-2;5;-5;10;-10\right\}\\ =>\left\{{}\begin{matrix}\left\{{}\begin{matrix}x-5=1\\x-5=-1\\x-5=2\\x-5=-2\end{matrix}\right.\\\left\{{}\begin{matrix}x-5=5\\x-5=-5\\x-5=10\\x-5=-10\end{matrix}\right.\end{matrix}\right.=>\left\{{}\begin{matrix}\left\{{}\begin{matrix}x=6\\x=4\\x=7\\x=3\end{matrix}\right.\\\left\{{}\begin{matrix}x=10\\x=0\\x=15\\x=-5\end{matrix}\right.\end{matrix}\right.\)

Vậy \(x\in\left\{6;4;7;3;10;0;15;-5\right\}\)

Answer 2

[Sahara]

\(x-5\inƯ\left(10\right)=\left\{\pm1;\pm2;\pm5;\pm10\right\}\)
Ta có bảng:

\(x-5\)	\(-10\)	\(-5\)	\(-2\)	\(-1\)	\(1\)	\(2\)	\(5\)	\(10\)
\(x\)	\(-5\)	\(0\)	\(3\)	\(4\)	\(6\)	\(7\)	\(10\)	\(15\)