To factor this expression it is necessary to find the maximum common divider. In this case, it is easy to identify that the maximum common divider of the expression is 4. To factor the expression divide each term by 4
[tex]\begin{gathered} \frac{4x}{4}=x \\ \frac{48}{4}=12 \end{gathered}[/tex]Now, factor the expression:
[tex]4x-48=4(x-12)[/tex]