What you'll learn
Manipulating expressions and solving equations.
Key skills
- Expanding, factorising (incl. quadratics); solving equations, inequalities, simultaneous equations.
- Rearranging formulae; nth term; straight-line graphs.
Exam tips
- Do the same to both sides.
- x² = a has two solutions (±).
Common mistakes
- Sign errors expanding negatives.
- Giving only one root.