Answer: (9r-8)(r+1) Step-by-step explanation: 9r² + r – 8 = 9r² + 9r – 8r – 8 = 9r (r+1) – 8 (r+1) = (9r-8)(r+1) Reply
Answer:
(9r-8)(r+1)
Step-by-step explanation:
9r² + r – 8
= 9r² + 9r – 8r – 8
= 9r (r+1) – 8 (r+1)
= (9r-8)(r+1)