Answer:
above is the answer to the question, second picture for clear view
You are right about the domain.
Twenty minutes to work over the most would agree that your replying the i
The complete factor from:
2x3 + 6x2 + 10x + 30
2x(x+3) + 10(x+3)
(x+3)(2x+10)
2(x+5)(x+3)
hope this help