Is it possible to use partial fractions on exponential factors? An expression like this for example... 3^x ______________________ (2^x + 3^x)(5^x + 6^x) Would it break down into something like this? A^x/(2^x + 3^x) + B^x/(5^x + 6^x) What are the rules for repeated factors and non-repeated, etc.? I am trying to figure out how the rules for partial fractions would apply to this type of problem. How would I solve for A and B?