Final answer:
To simplify the expression (3 sup -6)/(3 sup -4), subtract the exponents of the same base. In this case, the expression simplifies to 3 sup -2.
Step-by-step explanation:
To simplify the expression (3 sup -6)/(3 sup -4), we can apply the rule for dividing exponents. The rule states that when dividing terms with the same base, you subtract the exponents. In this case, the base is 3. So, (3 sup -6)/(3 sup -4) = 3 sup(-6-(-4)) = 3 sup -2.