Answer:
(4c + b)(12c - b)
Step-by-step explanation:
- b² + 48c² + 8bc ← rearrange
48c² + 8bc - b² ( split the middle term )
= 48c² + 12bc - 4bc - b² ( factor first/second and third/fourth terms )
= 12c(4c + b) - b(4c + b) ← factor out (4c + b) from each term
= (4c + b)(12c - b)
