Question

x(x+5)=0

Answer 1

\(x\left(x+5\right)=0\\ \Rightarrow x2+x5=0\\ \Rightarrow x\left(2+5\right)=0\\ \Rightarrow x7.=0\\ \Rightarrow x=0.\)

Answer 2

=> \(\left[{}\begin{matrix}x=0\\x+5=0\end{matrix}\right.\)

=> \(\left[{}\begin{matrix}x=0\\x=-5\end{matrix}\right.\)