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put this solution on YOUR website!(5n - 2)(2n^3 - 3n^2 - 4n - 5)
= 5n X (2n^3 - 3n^2 - 4n - 5) - 2 X (2n^3 - 3n^2 - 4n - 5)
= 5n X 2n^3 - 5n X 3n^2 - 5n X 4n - 5n X 5 - 2 X 2n^3 + 2 X 3n^2 + 2 X 4n + 2 X 5
= 10n^4 - 15n^3 - 20n^2 - 25n - 4n^3 + 6n^2 + 8n + 10
= 10n^4 - 19n^3 - 14n^2 - 17n + 10
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