1,045 prompts matching "The discriminant, and what each of its three cases means"
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Explain Back: Evaluating P of 2 for a given polynomial
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Show All Working: Adding and subtracting two polynomials
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Common Mistakes: Multiplying one polynomial by another
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Show All Working: Synthetic division as a shorter route
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Common Mistakes: The remainder theorem applied to a quartic
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Practice: Showing that x plus 3 is a factor of a given polynomial
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Common Mistakes: Using the factor theorem before dividing
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Common Mistakes: Factorising fully, and knowing when to stop
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Quiz: A cubic with three distinct real roots
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Common Mistakes: Comparing two statements by their truth tables
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Practice: What logical equivalence means
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Show All Working: The distributive laws in logic
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Common Mistakes: Simplifying a compound statement using the laws
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Quiz: What a contingency is
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Common Mistakes: Deciding between tautology, contradiction and contingency
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Quiz: Arrangements of a word with no repeated letters
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Practice: Arrangements of a word with repeated letters
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Show All Working: A circular arrangement with one fixed seat such as the head
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Spot My Mistake: A selection with at least a stated number of one kind
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Show All Working: Selecting a committee with the chairman named separately
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