Given,
[tex](0.4n)(16n)[/tex]To find: Simplify.
Solution:
Remove the decimal value of 0.4.
[tex]0.4=4\times10^{-1}[/tex]Now,
[tex]\begin{gathered} (4\times10^{-1}n)\times(16n)=64\times10^{-1}\times n^2 \\ =6.4n^2 \end{gathered}[/tex]Thus, option 6.4n^2 is correct.
