Remark
Each term inside the brackets must be divided by 2x. Your result will look like this
[tex] \frac{4x^3}{2x} + \frac{2x^2}{2x} - \frac{5}{2x} [/tex]
Everything is well behaved except the last term.
Your answer is
2x^2 + x - [tex] \frac{5}{2x} [/tex]
What you do next depends on what your choices are.
2x^2 + x - (5/2x) is one way to right it.
2x^1 + x - 2.5 / x is another way. This one really does depend on what your teacher wants. If you have a real person making this, any one of the choices will do.
