Verify that b=−2b=-2b=−2 and b=12b=12b=12 are solutions of b2−10b−24=0b^2 - 10b - 24 = 0b2−10b−24=0
203 exam-style questions on OCR GCSE Maths Solving Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.