1,045 prompts matching "Explaining why a^1/n means the nth root of a"
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Show All Working: Choosing between factorising and the formula
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Common Mistakes: A sign error in the formula, and how to catch it
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Final Revision: A word problem solved with the quadratic formula
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Worked Example: The identity linking alpha squared plus beta squared to the sum and product
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WAEC Prep: Forming an equation whose roots are alpha plus one and beta plus one
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Common Mistakes: A symmetric function needing the sum and product twice over
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Worked Example: Substituting into the quadratic and tidying up
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Show All Working: A simultaneous pair in which the second equation is a circle
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Worked Example: The discriminant used as the test for intersection
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Common Mistakes: A line and a curve meeting once without the line being a tangent
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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
I have just studied evaluating P of 2 for a given polynomial in my SS2 Further Mathematics
WAEC Prep: Expressions that are not polynomials, and why not
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Common Mistakes: Multiplying one polynomial by another
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Worked Example: The division algorithm for polynomials
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Worked Example: The remainder on dividing by x minus 3
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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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Practice: Showing that x plus 3 is a factor of a given polynomial
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Common Mistakes: Using the factor theorem before dividing
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