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Mathematics
Problem
Simplify
(
3
m
2
n
−
3
)
(
−
2
m
−
5
n
4
)
(3m^{2}n^{-3})(-2m^{-5}n^{4})
(
3
m
2
n
−
3
)
(
−
2
m
−
5
n
4
)
. Write your answer with positive exponents only.
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