Answer: n=3
Explanation:
(q⁴)^-3 / q^-15
Negative exponents move to denominator
1 / (q⁴)³ * q^-15
Negative exponents move to numerator
q¹⁵ / (q⁴)³
Simplify denominator
q¹⁵ / q¹²
Factor q¹² out
q³
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