[tex]\begin{gathered} \text{Given} \\ 789\times(364\times955)-6489(98\times9) \end{gathered}[/tex][tex]\begin{gathered} 789(364\times955)-6489(98\times9) \\ =789(347620)-6489(882) \\ =274272180-5723298 \\ =268548882 \end{gathered}[/tex]
Therefore
[tex]789(364\times955)-6,489(98\times9)=268,548,882[/tex]
