Mathematics GCSE
linear/quadratic substitution
What linear/quadratic substitution means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of linear/quadratic substitution
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Reference: Pearson Edexcel
The method for a linear/quadratic pair: make one letter the subject of the linear equation and substitute it into the quadratic.
Topics that use linear/quadratic substitution
- Algebra - Solving equations and inequalities (Pearson Edexcel GCSE)
Related terms
- Algebraic modelling of real-world situations
- Approximate solution
- Coefficient
- completing the square
- Defining variables and interpreting solutions
- Discriminant
- Elimination
- Factor
Using linear/quadratic substitution in the exam
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