`\text{~~Holi~~}`
`4x^2-26x-48=0`
`-> 2x^2-13x-24=0`
`-> 2x^2+3x-16x-24=0`
`-> x(2x+3)-8(2x+3)=0`
`-> (2x+3)(x-8)=0`
`->`\(\left[ \begin{array}{l}2x+3=0\\x-8=0\end{array} \right.\)
`->`\(\left[ \begin{array}{l}x=\frac{-3}{2}\\x=8\end{array} \right.\)