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+x302 exam-style questions on WJEC A Level Maths 1.2 Algebra and Functions, covering 1.2.1 Algebra and Functions, 1.2.2 Algebra and Functions, 1.2.3 Algebra and Functions, 1.2.4 Algebra and Functions, 1.2.5 Algebra and Functions, 1.2.6 Algebra and Functions, 1.2.7 Algebra and Functions, 1.2.8 Algebra and Functions, 1.2.9 Algebra and Functions, 1.2.10 Algebra and Functions, 1.2.11 Algebra and Functions, and 1.2.12 Algebra and Functions. Each one has a worked solution and a mark scheme showing where the marks go.