Verify that making u u\,u the subject of the formula v2=u2+2asv^2 = u^2 + 2asv2=u2+2as gives u=±v2−2asu = \pm\sqrt{v^2 - 2as}u=±v2−2as
215 exam-style questions on Eduqas GCSE Maths Rearranging Harder Formulae. Each one has a worked solution and a mark scheme showing where the marks go.