hasil dari pengurangaan aljabar 4/x+3 - 5/x-1

4(x-1)-5(x+3)/(x+3)(x-1) 4x-4-5x-15/(x+3)(x-1) -x-19/(x+3)(x-1)

[tex]\displaystyle \frac{4}{x+3}-\frac{5}{x-1}=\frac{4(x-1)}{(x+3)(x-1)}-\frac{5(x+3)}{(x-1)(x+3)} \\ \\ \frac{4x-4}{x^2+2x-3}-\frac{5x+15}{x^2+2x-3}=\frac{4x-4-(5x+15)}{x^2+2x-3} \\ \\ \frac{-x-19}{x^2+2x-3}[/tex]