MODERATE EXERCISES - Symbol Manipulation

(4) Write each sum or difference as a single fraction.
 
 (a) 32 - 32 - 32 
          ----  ----
	    3     5

 (b)  - 20
    --  ---
     t   t2

 (c) 5k + x3
         ----
          2k

 (d)    14    +   9
     --------   --------
     (2x - 3)   (2x + 3)

 (e)  2  +    5    -     3
     ---   -------   -------
      x     x - 1     x2 - x

		
HINT: 
 
  Find a common denominator first, and then simplify.
 
 
  

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