1,045 prompts matching "The greatest and least values of a function in a closed interval"
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Learn: Factorising a quadratic whose coefficient of x squared is one
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Quiz: Factorising a difference of two squares in order to solve it
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Common Mistakes: Writing down the roots once the brackets are found
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Common Mistakes: Checking a completed square by expanding it again
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Final Revision: Why completing the square always works
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Learn: Deriving the quadratic formula by completing the square
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Final Revision: A word problem solved with the quadratic formula
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Spot My Mistake: Finding a missing coefficient from a stated product of roots
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Common Mistakes: Roots that are reciprocals of one another
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Learn: What makes an expression in the roots symmetric
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Show All Working: Forming an equation whose roots are three alpha and three beta
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Show All Working: A simultaneous pair in which the second equation is a circle
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Common Mistakes: A word problem giving one linear and one quadratic equation
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Learn: Forming the quadratic that decides where a line meets a curve
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Final Revision: A word problem about a line and a parabola
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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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Final Revision: A word problem that uses the remainder theorem
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