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Mathematics
Problem
Simplify
(
2
a
−
2
b
3
)
2
×
(
4
a
3
b
−
2
)
−
1
(2a^{-2}b^{3})^{2}\times\left(\dfrac{4a^{3}}{b^{-2}}\right)^{-1}
(
2
a
−
2
b
3
)
2
×
(
b
−
2
4
a
3
)
−
1
. Express your final answer using positive exponents only.
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