Puzzle
AlgebraPuzzle
Code breaker:Solving quadratics by factorising
Thirteen quadratic equations to factorise and solve, including negative solutions and one with no number term. The answer is the larger solution, and the Code Box includes the smaller ones. Two per A4.
A free GCSE algebra puzzle with answers, spec code A18. It goes with the lessons on factorising quadratics and solving quadratics by factorising.
Lesson
Factorising quadratics
Lesson
Solving quadratics by factorising
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 · Foundation
- Forming equations from perimeterLesson · Common
- Inequalities on a number lineLesson · Common
- Solving inequalitiesLesson · Common
- Quadratic inequalitiesLesson · Higher
- Algebraic expressions: exam questionsExam questions
- Functions and iterationProblem solving
- Solving one-step equationsWorksheet · Foundation
- Answer chain: two-step equationsPuzzle