Verify that the solutions of 3x2+2x−13=03x^2 + 2x - 13 = 03x2+2x−13=0 are 1.8 and -2.4.
Give your solutions correct to 1 decimal place.
156 exam-style questions on OCR GCSE Maths Quadratic Formula. Each one has a worked solution and a mark scheme showing where the marks go.