1,045 prompts matching "Where the surds sit on the number line"
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Worked Example: Factorising a quadratic whose leading coefficient is not one
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Worked Example: Halving the coefficient of x and squaring it
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WAEC Prep: The minimum value of a quadratic found by completing the square
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Common Mistakes: Checking a completed square by expanding it again
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Worked Example: Substituting a, b and c into the quadratic formula correctly
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WAEC Prep: What the formula gives when the discriminant is negative
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Worked Example: The product of the roots as c over a
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WAEC Prep: Checking the sum and product against the solved roots
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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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Worked Example: Substituting into the quadratic and tidying up
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WAEC Prep: A pair that gives no real solution at all
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WAEC Prep: Expressions that are not polynomials, and why not
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WAEC Prep: Dividing by a factor of the form ax plus b
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WAEC Prep: The factor theorem for a factor of the form ax plus b
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Learn: Factorising a cubic into three linear factors
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Worked Example: Factorising a cubic into a linear and a quadratic factor
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Explain Back: A polynomial with a repeated linear factor
I have just studied a polynomial with a repeated linear factor in my SS2 Further Mathemati
WAEC Prep: Factorising the difference of two cubes
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Common Mistakes: Factorising fully, and knowing when to stop
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