F(x) = 2x² - jx

This is a quadratic function in terms of x, where j is a constant. The function can be written as:

F(x) = 2x² - jx

This function represents a parabola that opens upwards if the coefficient of x² (2) is positive. The vertex of the parabola is at the point (0,0) and the axis of symmetry is the line x = 0.

The value of j will determine the specific shape and position of the parabola. Changing the value of j will shift the parabola horizontally and affect its steepness.

Real Part: 2x²

Imaginary Part: -jx