Branching out in EDH Mystery Cache

I am branching out.  I have hidden this cache in El Dorado Hills, outside of my normal caching area but still close to home.  Also, this is a puzzle cache (I haven't made many of these in the past) so, the cache container is not at the posted coordinates.  There is parking nearby but not right at the cache site.

To find the cache you must do a little work.  The coordinates for the cache are N 38° 3A.BBA  W 121° 0C.DDA.  Where:

ABBA > CDDA

A x B = B

C² = (A - D) + (A - D)

√C = D + D

C³ + C² + D³ = A²

Come on ... its easy math. 

I have a goal for 2014 of hiding caches on days when the month and date match.  I hid one cache on 1/1, two caches on 2/2, and three caches on 3/3.  With luck and hard work I can keep it up all year.   Since this is one of my seven July hides, I am beginning the second half of the year ... the hardest half of the year!

Remember, have fun and write a nice log.

Credit for this puzzle goes to fearthefish.  It was from one of their caches that I got the idea for this puzzle.

You can check your answers for this puzzle on GeoChecker.com.