1,045 prompts matching "The discriminant, and what each of its three cases means"
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Practice: Factorising a quadratic with a common factor taken out first
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Spot My Mistake: Solving a quadratic that must be rearranged before factorising
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Spot My Mistake: A pair with equal roots, meaning one solution only
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Spot My Mistake: A polynomial written in descending powers
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Quiz: Dividing a quartic by a quadratic
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Practice: A division that leaves no remainder
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Explain Back: A division that leaves a constant remainder
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Spot My Mistake: A division that leaves a linear remainder
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Spot My Mistake: Finding two coefficients from two remainder conditions
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Quiz: Which values are worth testing as factors
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Explain Back: Finding a coefficient so that a stated expression is a factor
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Quiz: Factorising a polynomial by grouping terms
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Explain Back: A polynomial with a repeated linear factor
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Explain Back: A cubic with a repeated root
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Practice: Negation combined with a compound statement
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Spot My Mistake: Building a truth table column by column
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Quiz: Why a conditional with a false antecedent counts as true
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Explain Back: Showing two statements equivalent by truth table
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Spot My Mistake: De Morgan's laws in logic
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Practice: Showing that a statement is a tautology
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