Formulae, rearranging and algebraic fractions

By the end you’ll be able to

• Substitute positive, negative and fractional values into formulae and expressions, including kinematics formulae such as $v^2 = u^2 + 2as$
• Rearrange formulae to change the subject, including cases with powers, roots and fractions
• Rearrange when the new subject appears twice by collecting terms and factorising, e.g. make $x$ the subject of $y = \frac{x + 3}{x - 2}$ (Higher)