Question

 Giúp mk vs :

x . ( x + 3 ) = 0

Cảm ơn !!!!!!!!!!!!!!!

Answer 1

\(x\left(x+3\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x=0\\x+3=0\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x=0\\x=-3\end{cases}}\)

Vậy \(x\in\left\{0;-3\right\}\)

Answer 2

\(x.\left(x+3\right)=0\)

\(\Rightarrow\hept{\begin{cases}x=0\\x+3=0\end{cases}\Leftrightarrow\hept{\begin{cases}x=0\\x=-3\end{cases}}}\)

vậy \(x=0\)hoặc\(x=-3\)

Answer 3

x.(x + 3) = 0

\(\Rightarrow\orbr{\begin{cases}x=0\\x+3=0\end{cases}}\)\(\Rightarrow\orbr{\begin{cases}x=0\\x=0-3\end{cases}}\)\(\Rightarrow\orbr{\begin{cases}x=0\\x=-3\end{cases}}\)

Vậy x = 0 hoặc x = - 3

Answer 4

x.(x+3)=0

=>x=0

=>x+3=0  =>x=-3