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Assuming that the expression is (2n - 5)^3:

(2n - 5)(2n - 5)(2n - 5) =

(2n - 5)(4n^2 - 20n + 25) =

8n^3 - 40n^2 + 50n - 20n^2 + 100n - 125 =

8n^3 - 60n^2 + 150n - 125
by Level 6 User (23.1k points)

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