What is the simpler form of the following expression?

Question

(6x3 – 1x2 + 1) ÷ (2x + 1)
(1 point)
Responses

–3x2 + 2x – 1
–3 x 2 + 2 x – 1

3x2 – 2x + 1
3 x 2 – 2 x + 1

–3x2 + 2x – 1
–3 x 2 + 2 x – 1

3x3 + 2x – 1

Answer 1

3x^2 - 2x + 1