Answer:
4x^2 - 2x + 1
Step-by-step explanation:
Since you are adding, you can drop the parentheses because they are unnecessary. Combine like terms.
(3x^2 - 2x + 1) + (1x^2) =
= 3x^2 - 2x + 1 + 1x^2
= 4x^2 - 2x + 1