Answer:
(b-3)(5b - 17)
Step-by-step explanation:
2(3-b) + 5(b-3)²
= -2(b-3) + 5(b-3)² → both element has the same factor : (b-3)
= (b-3)(-2 + 5(b-3))
= (b-3)(5b - 17)
