Chắc là gpt \(x\left(x+1\right)\left(x+2\right)\left(x+3\right)=24\)
\(\Leftrightarrow\left(x^2+3x\right)\left(x^2+3x+2\right)-24=0\)
Đặt \(t=x^2+3x\) thì ta có:
\(\Leftrightarrow t\left(t+2\right)-24=0\)\(\Leftrightarrow t^2+2t-24=0\)
\(\Leftrightarrow\left(t-4\right)\left(t+6\right)=0\)\(\Rightarrow\orbr{\begin{cases}t=4\\t=-6\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}x^2+3x=4\\x^2+3x=-6\end{cases}}\)\(\Rightarrow\orbr{\begin{cases}x=-4\\x=1\end{cases}}\)