At a glance
4
Occurrences
questions
3
Years
3
Papers
4
Worked
100%
When this method shows up
Years in which at least one question on this paper triggers the method.
Other top methods in Algebra & Inequalities
- Apply the factor and remainder theorem by substituting the root, never by dividing×6
- Turn a question about the nature or count of roots into a discriminant condition×6
- For a linear-quadratic system, substitute the linear equation into the quadratic at once×4
- Solve polynomial inequalities by factorising and tracking signs on a number line×4
- Judge a 'must be true' claim by proving the survivors and killing the rest with one counterexample×4
See the worked examples
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