629 prompts matching "Assuming a quadratic with a negative discriminant has no roots at all"
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Practice: Finding the matching value of the second unknown
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Common Mistakes: A word problem giving one linear and one quadratic equation
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Worked Example: The discriminant used as the test for intersection
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Common Mistakes: A line and a curve meeting once without the line being a tangent
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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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Show All Working: Adding and subtracting two polynomials
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Common Mistakes: Multiplying one polynomial by another
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Worked Example: The division algorithm for polynomials
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Practice: A division that leaves no remainder
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Show All Working: A remainder of nought, and what it means
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Practice: Showing that x plus 3 is a factor of a given polynomial
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Show All Working: What the factor theorem says about the roots
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Worked Example: Factorising a cubic into a linear and a quadratic factor
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Practice: Factorising a quartic as the product of two quadratics
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Common Mistakes: Factorising fully, and knowing when to stop
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Worked Example: Sentences that are not propositions
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Practice: Negation combined with a compound statement
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Explain Back: The truth table for a statement with two connectives
I have just studied the truth table for a statement with two connectives in my SS2 Further