Write the following without negative exponents:

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Problem

Write the following without negative exponents: (1) ab−2ab^{-2} (2) (ab)−2(ab)^{-2} (3) (2ab−1)2(2ab^{-1})^2 (4) (5m2)−2(5m^2)^{-2} (5) (3a−2b)2(3a^{-2}b)^2 (6) (3xy4)−3(3xy^4)^{-3} (7) a2b−1c2\frac{a^2b^{-1}}{c^2} (8) a2b−1c−2\frac{a^2b^{-1}}{c^{-2}} (9) 1a−3\frac{1}{a^{-3}} (10) a−2b−3\frac{a^{-2}}{b^{-3}} (11) 2a−1d2\frac{2a^{-1}}{d^2} (12) 12am−3\frac{12a}{m^{-3}}

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