1,043 prompts matching "Deriving the arithmetic series sum formula"
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WAEC Prep: A quadratic with a repeated root
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Show All Working: A quadratic whose two roots are both negative
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Final Revision: A word problem solved by factorising a quadratic
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Common Mistakes: Checking a completed square by expanding it again
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Spot My Mistake: Finding a missing coefficient from a stated product of roots
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Show All Working: Roots equal in magnitude but opposite in sign
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WAEC Prep: Forming an equation whose roots are alpha plus one and beta plus one
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Show All Working: Forming an equation whose roots are three alpha and three beta
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Final Revision: Using a symmetric function to find an unknown coefficient
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Spot My Mistake: A pair with equal roots, meaning one solution only
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WAEC Prep: A pair that gives no real solution at all
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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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Final Revision: A word problem about a line and a parabola
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Learn: What makes an expression a polynomial
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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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Spot My Mistake: A polynomial written in descending powers
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WAEC Prep: Expressions that are not polynomials, and why not
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Show All Working: Adding and subtracting two polynomials
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