Question

Factorize the following:
16m − 4m²

Answer 1

$$\begin{gathered} Thegreatestcommonfactoroftheterms16mand4m^{2}oftheexpression16m-4m^{2}is4m. \\ Also,wecanwrite16m=4m\times 4and4m^2=4m\times m. \\ \therefore 16m-4m^2=4m\times 4-4m\times m \\ =4m(4-m) \end{gathered}$$