Higher
AlgebraWorksheet · Higher
The quadratic formula, Extend
b² − 4ac for how many solutions or to find k, then the root simplified and divided through for an exact answer, as a recipe for any question. Two to a page, to stick in books.
A free GCSE Higher algebra walkthrough, spec code A18.
More in Equations and inequalities
- Missing numbers: first equationsLesson · Support
- Solving two-step equationsLesson · Support
- Solving two-step equationsLesson · Foundation
- Equations with bracketsLesson · Support
- Equations with bracketsLesson · Foundation
- Equations: the unknown on both sidesLesson · Support
- Equations: the unknown on both sidesLesson · Foundation
- Forming equations from perimeterLesson · Common
- Inequalities on a number lineLesson · Common
- Solving inequalitiesLesson · Common
- Algebraic expressions: exam questionsExam questions
- Functions and iterationProblem solving
- Solving one-step equationsWorksheet · Foundation
- Answer chain: two-step equationsPuzzle