Algebraic Techniques, SMB-068 Factorise the expression `5/(b^2-b)-2/(b^2-1)` (3 marks) Show Answers Only `(3b+5)/(b(b-1)(b+1))` Show Worked Solution `5/(b^2-b)-2/(b^2-1)` `=5/(b(b-1))-2/((b+1)(b-1))` `=(5(b+1))/(b(b-1)(b+1))-(2b)/(b(b-1)(b+1))` `=(5b+5-2b)/(b(b-1)(b+1))` `=(3b+5)/(b(b-1)(b+1))`