Factorise b2+9b+20b^2 + 9b + 20b2+9b+20
Solve b2+9b+20=0b^2 + 9b + 20 = 0b2+9b+20=0
Practise Edexcel IGCSE Maths Solving Quadratics with exam-style questions for IGCSE Maths. 18 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.