Question

Tìm các số nguyên x sao cho: (x - 1) (x +2) (x - 3) =0 

Nhanh lên nhé !

Answer 1

x= 1,(-2), 3

Answer 2

Ta có: (x-1)(x+2)(x-3)=0

\(\Rightarrow\left[{}\begin{matrix}x-1=0\\x+2=0\\x-3=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=1\\x=-2\\x=3\end{matrix}\right.\)

Answer 3

\(\left(x-1\right)\left(x+2\right)\left(x-3\right)=0\)

⇔\(x-1=0\) \(hay\) \(x+2=0\) \(hay\) \(x-3=0\)

⇔\(x=1\) \(hay\) \(x=-2\) \(hay\) \(x=3\)