Question

14 chia hết cho (2x)

 

Answer 1

x= 7

Answer 2

\(14⋮2x\\ \Rightarrow7⋮x\\ \Rightarrow x\in\left\{\pm1;\pm7\right\}\)

Answer 3

\(\Rightarrow2x\inƯ\left(14\right)=\left\{-14;-7;-2;-1;1;2;7;14\right\}\)

\(\Rightarrow x\in\left\{-7;-\dfrac{7}{2};-1;-\dfrac{1}{2};\dfrac{1}{2};1;\dfrac{7}{2};7\right\}\)

Answer 4

\(14⋮2x\Rightarrow7⋮x\Rightarrow x=7\)

Answer 5

x=7 vì 14:2=7