1,206 prompts matching "Factorising a cubic into a linear and a quadratic factor"
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Quiz: Forming a quadratic equation whose roots are given
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Practice: The condition for a quadratic equation to have equal roots
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Show All Working: Solving a quadratic by completing the square
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Common Mistakes: Proving that a quadratic expression is positive for every real x
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Final Revision: Solving a disguised quadratic by substitution
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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Spot My Mistake: The factor theorem for a divisor of the form ax minus b
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Learn: The sum of the roots of a cubic read from its coefficients
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Quiz: The product of the roots of a cubic
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Practice: Finding the third root of a cubic when two are known
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WAEC Prep: Finding a coefficient of a cubic given one of its roots
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Show All Working: Three roots in arithmetic progression in a cubic
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Common Mistakes: Three roots in geometric progression in a cubic
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Quiz: Solving a quadratic inequality using a sign table
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Show All Working: Solving a pair of simultaneous linear inequalities
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Final Revision: The region of the plane satisfying a set of linear inequalities
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Spot my mistake: Assuming a quadratic with a negative discriminant has no roots at all
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Spot my mistake: Differentiating a product by multiplying the derivatives of its two factors
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What a function is and function notation
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Mapping diagrams and function types
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