1,045 prompts matching "The difference of two squares applied to surd conjugates"
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Spot My Mistake: Finding a missing coefficient from a stated product of roots
Act as my SS2 Further Mathematics tutor. Work a question on finding a missing coefficient
Final Revision: One root twice the other, and what that gives
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Learn: What makes an expression in the roots symmetric
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Common Mistakes: A symmetric function needing the sum and product twice over
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Final Revision: Using a symmetric function to find an unknown coefficient
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Learn: Forming the quadratic that decides where a line meets a curve
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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
Show All Working: Adding and subtracting two polynomials
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Common Mistakes: Multiplying one polynomial by another
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Spot My Mistake: Finding two coefficients from two remainder conditions
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Final Revision: A word problem that uses the remainder theorem
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Learn: Factorising a cubic into three linear factors
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Show All Working: Factorising a polynomial with fractional roots
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Common Mistakes: Factorising fully, and knowing when to stop
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Final Revision: Checking a factorisation by expanding it again
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Learn: Solving a cubic once it has been factorised
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Practice: A cubic with one real root and two complex ones
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Final Revision: Checking a root of a cubic by substitution
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