1,323 prompts matching "The solution when the quadratic expression is less than nought"
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WAEC Prep: The remainder when a polynomial is divided by a quadratic
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WAEC Prep: When Cramer's rule is quicker than elimination
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Worked Example: The continuity correction when approximating a discrete distribution
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Common Mistakes: Proving that a quadratic expression is positive for every real x
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WAEC Prep: What Cramer's rule gives when the system is inconsistent
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WAEC Prep: When the matrix method is worth the work for three unknowns
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WAEC Prep: Why one component vanishes when the direction is chosen well
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Practice: Using the normal tables when the z-score is negative
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Spot My Mistake: When the normal distribution may approximate the binomial
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Practice: The middle term when the power is odd
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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Spot My Mistake: Showing the solution of an inequality on a number line
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Common Mistakes: The range of values of x for which an expression stays positive
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Common Mistakes: Giving the general solution of a trigonometric equation
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Common Mistakes: What becomes of the tension when the string goes slack
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Spot my mistake: Leaving out the constant of integration when velocity is found from acceleration
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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Final Revision: The speed of a body when it reaches the foot of an incline
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Spot my mistake: Negating the leading diagonal and swapping the other two entries when inverting a 2 by 2 matrix
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Give me a past-paper style question bank for quadratic factorisation
I am in SS 3. Give me a bank of four exam-style questions on factorising quadratic trinomi