Math equation help/division and exponents

Question

5z⁵ -z³+5z²-14z-10

         z²-2

 

Divsion

 

This is the answer that it should be but i cant arrive at it

 

5z³+9z+5+4z

                z^2-2

Answer 1

5z³ + 9z + 5 R: 4z

 

Sorry I can write out the division.

Answer 2

                      5Z^5-Z^3+5Z^2-14Z-10

                     ___________________________

                               Z^2-2                                      

 

   =5Z^3+9Z^4+5              

 

    Remainder of: 5Z^5-Z^3+5Z^2-14Z-10

 

      Hope this helps       (Top minus bottom)