TisITheStudent TisITheStudent

04-11-2016
Mathematics

Answered

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

Verified Answer :

Anonymous Anonymous

04-11-2016

(2n2 + 4n + 4)(4n – 5)
= 8n^3 + 16n^2 +16n -10n^2 - 20n - 20
= 8n^3 +6n^2 -4n - 20

answer is d.
8n3 + 6n2 – 4n – 20

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