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3.0 PARTIAL FRACTIONS
Partial fraction is one of the simplest and most effective method in solving algebra related
problems regarding rational functions.
3.1 Factoring Polynomial Expressions
Polynomials often need to be factored in order to be solved. When factoring a polynomial,
the terms of the expression are simply reorganizing to make them easier to solve.
Example 1
Find the partial fraction expansion of the expression
a) 2s+4 c) 8s−2
2
2
(s +9s+18) (s +s−12)
b) s−5 d) 5s+1
2
2
(s −5s+6) (s −3s−10)
SOLUTION
2s + 4
a) denominator
2
(s + 9s + 18)
36
