Question

Can someone help me solve with this question?
I need a step by step explanation.
for question C.​

Answer 1

1. 6^12×6^-5=6^m×6^3×6^-2
2. 6^m=6^12×6^-5÷6^3×6^-2
3. 6^m=6^12-3÷6^-5-(-2)
4. 6^m=6^9÷6^-3
5. 6^m=6^9-(-3)
6. 6^m=6^-12
7. m=6^12÷6
8. m=6^11(ans)