Factoring a²-b² vs Common Factor — Grade 9 Maths Explained | Factoriser : a²-b² VS facteur commun

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Apr 10, 2026

Learn how to factorise algebraic expressions in this clear Grade 9 (Troisième) maths lesson comparing two essential techniques: the difference of squares identity a²-b² and the common factor method. This tutorial by YvanMonka walks through each approach step by step, helping students understand when to apply each factoring strategy, how to recognise the correct form, and how to avoid common mistakes. Perfect for pupils preparing for end-of-year exams or looking to strengthen their algebra foundations at the Troisième level. #Factorisation #MathsTroisième #AlgèbreFrançaise #YvanMonka #CollegeMaths #Lykstage #LykstageVideo #LykstageCreator #LykstageCommunity