1,045 prompts matching "Explaining why a^1/n means the nth root of a"
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Worked example: reading the solutions as points of intersection
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Sum and product of roots of a cubic equation
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Worked example: how many distinct arrangements are there of the letters in the word MISSISSIPPI
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Real-life application of sum and product of roots
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WAEC exam question: symmetric functions of roots
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Common Mistakes: Writing down the roots once the brackets are found
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Learn: Making the coefficient of x squared equal to one first
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Worked Example: Halving the coefficient of x and squaring it
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Final Revision: Why completing the square always works
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Explain Back: Finding a missing coefficient from a stated sum of roots
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Spot My Mistake: Finding a missing coefficient from a stated product of roots
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Final Revision: One root twice the other, and what that gives
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Learn: Making one unknown the subject of the linear equation
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Spot My Mistake: A pair with equal roots, meaning one solution only
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Worked Example: The degree of a polynomial in one variable
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Learn: Setting out the division of a cubic by a linear expression
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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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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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