WJEC GCSE Mathematics and Numeracy (Double Award) 3320QD · 2.2.9
Trial and improvement for cubic equations
- Code
- 2.2.9
- In
- 2.2 Equations and inequalities – algebraic method
- Topic
- 2 Algebra
- Course
- GCSE Mathematics and Numeracy (Double Award) 3320QD
- Board
- WJEC
Codes and titles are read by a script from WJEC's published specification and have not been checked by a person. What each point covers is in the specification itself: WJEC’s specification.
Points in 2.2 Equations and inequalities – algebraic method
- 2.2.1 Solving linear equations
- 2.2.2 Solving more complex linear equations
- 2.2.3 Simple linear inequalities
- 2.2.4 More complex linear inequalities
- 2.2.5 Solving quadratics by factorisation
- 2.2.6 Simultaneous linear equations
- 2.2.7 Equations with linear denominators
- 2.2.8 Solving quadratics by formula
- 2.2.9 Trial and improvement for cubic equations
- 2.2.10 Equations for direct and inverse proportion