EM-585

Quadratics by factorisation

E Math · Secondary 3 · Hard · Quadratics by factorisation

1. $2x^2-7x-4=0$
2. $2x^2+7x-4=0$
3. $x^2-\tfrac72x-2=0$
4. $x^2+\tfrac72x-2=0$

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