5x-4/(x+1)(2x-1)=A/x-1-B/2x-1
5x-4/(x+1)(2x-1)=[A(2x-1)-B(x-1)]/(x+10(2x—1)5x-4=A(2x-1)-B(x-1)5x-4=(2A-B)x-A+B2A-B=5 -A+B=-4A=1,B=-3
5x-4/(x+1)(2x-1)=A/x-1-B/2x-1
5x-4/(x+1)(2x-1)=[A(2x-1)-B(x-1)]/(x+10(2x—1)5x-4=A(2x-1)-B(x-1)5x-4=(2A-B)x-A+B2A-B=5 -A+B=-4A=1,B=-3