E2.5.1 Construct expressions, equations and formulas
Construct expressions, equations and formulas, including simultaneous equations.
E2.5.2 Solve linear equations
Solve linear equations in one unknown.
E2.5.3 Solve fractional equations
Solve fractional equations with numerical and linear algebraic denominators.
E2.5.4 Solve simultaneous linear equations
Solve simultaneous linear equations in two unknowns.
E2.5.5 Solve linear and non-linear simultaneous equations
Solve simultaneous equations involving one linear and one non-linear equation, with powers no higher than two.
E2.5.6 Solve quadratic equations
Solve quadratic equations by factorisation, completing the square and the quadratic formula; write completed-square forms and give solutions in surd form when required.
E2.5.7 Change the subject of formulas
Change the subject of formulas, including cases where the subject appears twice or is raised to a power or under a root.