dreamoverload69 dreamoverload69

12-10-2017
Mathematics

contestada

7n2 + 8n − 12
A) (7n + 6)(n − 2)
B) (5n − 8)(n + 10)
C) Not factorable
D) (7n − 6)(n + 2)

Respuesta :

choixongdong choixongdong

12-10-2017

7n^2 + 8n − 12
= (7n - 6)(n + 2)

cause
(7n - 6)(n + 2)
= 7n^2 - 6n + 14n - 12
= 7n^2 + 8n - 12

answer
D) (7n − 6)(n + 2)

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