Simplify using the horizontal method.

(2n2 + 4n + 4) (4n - 5)

a.

8n3 + 4n2 - 6n - 20

b.

8n3 + 26n2 - 36n - 20

c.

8n3 - 6n2 + 36n - 20

d.

8n3 + 6n2 - 4n - 20

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