Find All Functions F(x) with the Following Property: F'(x) = $x ^ { 2 }$

Short Answer

Find all functions f(x) with the following property: f'(x) = 3 $x ^ { 2 }$ + 2x + 1.
Enter your answer as a polynomial in x in standard form with any fractional coefficients or powers reduced of form $\frac { a } { b }$ .