Key Questions Now work on your Key Questions in the online submission tool. You may continue to work at this task over several sessions, but be sure to save your work each time. When you have answered all the unit's Key Questions, submit your work to the ILC. (18 marks) 48. Solve each inequality graphically. State the solution and graph the solution: (10 marks: 5 marks each) X a) x3 -6x2+5x+12>0 b) x2- 2x -8 49. Solve each inequality algebraically: (8 marks: 4 marks each) a) x'+5x+650 3 b) >0 -2 - 4 This is the last lesson in Unit 2. When you have competed all the Key Questions, submit your work to ILC. A teacher will mark it and you will receive your results online