For comparison with other CAS choose from: Axiom Macsyma Maple Mathematica Reduce
(2 + 3 #i) (15 - 6 #i) + 2/(2 - 4 #i)
2 (2 + 3 i) (15 - 6 i) + --------- 2 - 4 i 241 167 i ----- + ------- 5 5