This is division of polynomial
[tex]\begin{gathered} \text{ 2x - 1} \\ 2x^2\text{ - 1 }\sqrt[]{4x^3-2x^2\text{ - 1}} \\ \text{ - (4x}^{3\text{ }}\text{ - 2x)} \\ \text{ -2x}^2\text{ + 2x - 1} \\ \text{ - (-2x}^2\text{ + 1)} \\ \text{ 2x - 2} \end{gathered}[/tex]Remainder = 2x - 2
Quetient = 2x - 1