940 prompts matching "Structured question: quadratic with roots that differ by a given amount"
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Explain Back: The value of alpha minus beta, all squared
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Practice: Finding the matching value of the second unknown
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Explain Back: Writing the answers as ordered pairs
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Worked Example: The discriminant used as the test for intersection
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Practice: The condition for the line to be a tangent
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Explain Back: The condition for the line never to meet the curve
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Worked Example: The degree of a polynomial in one variable
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Practice: Polynomial notation such as P of x
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Explain Back: Evaluating P of 2 for a given polynomial
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Worked Example: The division algorithm for polynomials
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Explain Back: Finding a coefficient when the remainder is given
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Worked Example: Testing a list of candidates to find a factor
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Practice: The conjunction of two propositions
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Explain Back: The disjunction of two propositions
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Worked Example: Conjunction in a three-variable truth table
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Worked Example: The truth table for the conditional
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Practice: The converse of a conditional
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Explain Back: The inverse of a conditional
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Worked Example: The truth table for the biconditional
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Practice: What logical equivalence means
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