bantuin dengan caranya ya

11.
[tex]3 ^{4} \times 3^{ - 2} \times 3^{ - 5} \\ = 3 ^{4 + ( - 2) + ( - 5)} \\ = 3 ^{ - 3} \\ = \frac{1}{27} [/tex]

12.
[tex]5 ^{3} \times 5 ^{ - 7} \div 5^{ - 2} \\ = 5 ^{3 + ( - 7) - ( - 2)} \\ = 5 ^{ - 2} \\ = \frac{1}{25} [/tex]

Maaf Kalau Salah