Verify that the solutions of 3x2−11x−13=03x^2 - 11x - 13 = 03x2−11x−13=0, correct to 3 significant figures, are 4.61 and -0.941.
156 exam-style questions on Eduqas GCSE Maths Quadratic Formula. Each one has a worked solution and a mark scheme showing where the marks go.