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3.1 Solve quadratic equation by factorising
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3.2 Solve quadratic equation by completing a square
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3.3 Solve quadratic equation by using formula
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3.4 Sketch a quadratic function
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3.5 Solve linear, quadratic inequality
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3.6 Use discriminant to determine the number of real roots
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3.7 Solve simultaneous equations (linear + quadratic)
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