You can put this solution on YOUR website! This problem is only hard if you don't know how to combine numbers to powers.
Lets start with the a's:
___ can be written as: a*a*a*a*a*a*a*a*a*a, if you have a problem seeing how they ad together. One a timesed together by nine a's is a total of ten a's multiplied together_______
now the c's:
___ = c*c*c*c*c*c*c = ......
Now the d's:
___d^5 * d^-1 = This one is harder to show then the others because of the negative, but another way to look at it is to just add the powers together = 5-1 = 4 =
.......
And we're as simple as we can get.
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