Solve x2−4x−1=0x^2 - 4x - 1 = 0x2−4x−1=0
Give your answers in the form a±ba \pm \sqrt{b}a±b.
Practise Edexcel IGCSE Maths Quadratic Formula with exam-style questions for IGCSE Maths. 9 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.