2:1 means its by a factor of 1/2. Meaning you just use the original number and divide by 2. The answer is B

Hope it will help you
Step-by-step explanation:
2x^3+2x^2+5x-7, That would be the answer.
Answer:
Top option
Step-by-step explanation:

According to this, this is definitely in the right place.
I am joyous to assist you anytime.
It’s b
Your welcome lol
Nnenenenenrnr