Solve the inequality
x2+8x>20 x^2 + 8x > 20 x2+8x>20Find the set of values for x x\,x which satisfy both of the inequalities
x2+8x>20 x^2 + 8x > 20 x2+8x>20 18+3x<23+x 18 + 3x < 23 + x 18+3x<23+x44 exam-style questions on Edexcel AS Level Maths Equations and Inequalities, covering 3.1 Linear Simultaneous Equations, 3.2 Quadratic Simultaneous Equations, 3.3 Simultaneous Equations on Graphs, 3.4 Linear Inequalities, 3.5 Quadratic Inequalities, and 3.6 Inequalities on Graphs. Each one has a worked solution and a mark scheme showing where the marks go.