909 prompts matching "What a determinant of nought means for a 2 by 2 matrix"
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Quiz: Finding the sum and the product without solving the equation
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Worked Example: The identity linking alpha squared plus beta squared to the sum and product
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Common Mistakes: A symmetric function needing the sum and product twice over
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Final Revision: Using a symmetric function to find an unknown coefficient
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Worked Example: Substituting into the quadratic and tidying up
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Quiz: Solving the quadratic that results from the substitution
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Explain Back: Writing the answers as ordered pairs
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Common Mistakes: A word problem giving one linear and one quadratic equation
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Final Revision: Checking both solutions in both equations
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Common Mistakes: A line and a curve meeting once without the line being a tangent
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Final Revision: A word problem about a line and a parabola
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Quiz: The leading term and the constant term
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Spot My Mistake: A polynomial written in descending powers
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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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Explain Back: Finding a coefficient when the remainder is given
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Spot My Mistake: Finding two coefficients from two remainder conditions
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Common Mistakes: The remainder theorem applied to a quartic
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Final Revision: A word problem that uses the remainder theorem
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