1,045 prompts matching "The sum of an arithmetic progression with a negative common difference"
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Practice: Factorising a quadratic with a common factor taken out first
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Spot My Mistake: Solving a quadratic that must be rearranged before factorising
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WAEC Prep: A quadratic with a repeated root
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Common Mistakes: Writing down the roots once the brackets are found
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Quiz: Completing the square on x squared plus 6x
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Spot My Mistake: Completing the square when the roots are not real
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Common Mistakes: Checking a completed square by expanding it again
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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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Quiz: Solving the quadratic that results from the substitution
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Common Mistakes: A word problem giving one linear and one quadratic equation
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Practice: Polynomial notation such as P of x
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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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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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WAEC Prep: The remainder theorem checked against long division
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Common Mistakes: The remainder theorem applied to a quartic
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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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