1,043 prompts matching "IGCSE Additional Maths Y10: Finding k so that a quadratic has equal roots — Expl"
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Show All Working: Forming an equation whose roots are three alpha and three beta
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Learn: Making one unknown the subject of the linear equation
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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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Show All Working: The point of contact when a line touches a curve
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Learn: What makes an expression a polynomial
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Worked Example: The degree of a polynomial in one variable
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Show All Working: Adding and subtracting two polynomials
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Learn: Setting out the division of a cubic by a linear expression
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Worked Example: The division algorithm for polynomials
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Show All Working: Synthetic division as a shorter route
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Learn: The statement of the remainder theorem
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Worked Example: The remainder on dividing by x minus 3
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Show All Working: A remainder of nought, and what it means
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Learn: The statement of the factor theorem
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Worked Example: Testing a list of candidates to find a factor
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Show All Working: What the factor theorem says about the roots
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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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Worked Example: How many roots a cubic equation has
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