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Factorise completely $12n^2 - 4mn$.
Mathematics 0580 · IGCSE · Algebraic manipulation
Algebraic manipulation — practice question
Worked solution & mark scheme
This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A correct equivalent form is shown, for example $4(3n^{2}-mn)$ or $n(12n-4m)$ or $2n(6n-2m)$ or $2(6n^{2}-2mn)$” …
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