tolong bantu 4/x+3 - 5/x-1 =

mudah-mudahan maksud pertanyaannya begini
4/(x+3) - 5/(x-1)= (4(x-1)-5(x+3)) / (x+3)(x-1)
=4x - 4- 5x -15/ xkuadrat+2x-3
= -x - 19/(xkuadrat+2x-3)

4(x-1)-5(x+3)/(x+3)(x-1)
4x-4-5x-15/(x+3)(x-1)=-x-11/(x+3)(x-1)