Write and simplify the term involving \( a^{2} b^{5} \) in \[ (a-2 b)^{4}(a+b)^{3} \] W

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Write and simplify the term involving \( a^{2} b^{5} \) in
\[
(a-2 b)^{4}(a+b)^{3}
\]
W
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