1,045 prompts matching "Symmetric functions when the three roots of a cubic are involved"
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Show All Working: Choosing between factorising and the formula
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Common Mistakes: A sign error in the formula, and how to catch it
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Quiz: Finding the sum and the product without solving the equation
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WAEC Prep: Forming an equation whose roots are alpha plus one and beta plus one
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Quiz: Solving the quadratic that results from the substitution
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Show All Working: A simultaneous pair in which the second equation is a circle
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Learn: Forming the quadratic that decides where a line meets a curve
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Common Mistakes: A line and a curve meeting once without the line being a tangent
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Quiz: The leading term and the constant term
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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
I have just studied evaluating P of 2 for a given polynomial in my SS2 Further Mathematics
Common Mistakes: Multiplying one polynomial by another
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Show All Working: Synthetic division as a shorter route
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Quiz: The remainder on dividing by x plus 2
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Show All Working: A remainder of nought, and what it means
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Common Mistakes: The remainder theorem applied to a quartic
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Worked Example: Testing a list of candidates to find a factor
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Practice: Showing that x plus 3 is a factor of a given polynomial
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Spot My Mistake: The factor theorem applied to a quartic
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Common Mistakes: Using the factor theorem before dividing
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