Question

What is a simpler form of the expression? (2n 2 + 5n + 3)(4n – 5) A. 8n 3 + 10n 2 – 13n – 15 B. 8n 3 + 30n 2 – 37n – 15 C. 8n 3 – 10n 2 + 37n – 15 D. 8n 3 + 13n 2 – 10n – 15

Answer 1

(2n^2 + 5n + 3)(4n – 5)
= 8n^3 -10n^2 + 20n^2 - 25n + 12n - 15
= 8n^3 + 10n^2 - 13n - 15 

answer is A. 8n^3 + 10n^2 – 13n – 15

hope that helps