Because both of those expressions are second degree polynomials, you are going to get a whole number with a remainder. Since 2 goes into 4 twice, our whole number is 2. If we do the multiplication and subsequent subtraction, we have a remainder of 18z + 45. So our simplification, if you can call it that (it's really not that simple) is [tex]2R \frac{18z+45}{2 z^{2}-z-15 } [/tex]
