[tex]3 {}^{100} - 2\times 3 {}^{99} + 5 \times 3 {}^{98} \times 6[/tex]
[tex](3 {}^{2} - 2 \times 3 + 5 \times 6) \times 3 {}^{98} [/tex]
[tex](9 - 6 + 30) \times 3 {}^{98} [/tex]
[tex]33 \times 3 {}^{98} [/tex]
[tex]11 \times 3 \times 3 {}^{98} [/tex]
[tex]11 \times 3 {}^{99} [/tex]
