1. The problem statement, all variables and given/known data Use partial fractions to rewrite: (2z)/(z^2+3) 2. Relevant equations none 3. The attempt at a solution I did this: (2z)/(z^2+3) = (Az+B)/(z^2+3) 2z = Az +B A = 2, B = 0......problem is that it just recreates the original Here is their example in the book: 1/(z^2+1) = 1/(2i(z-i)) - 1/(2i(z+i)) I don't understand how they came to their conclusion in their example. Any help understanding their example or my question is appreciated.