878 prompts matching "Checking a root of a cubic by substitution"
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Worked Example: Checking the solution of three equations by substitution
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WAEC Prep: Checking a single entry of a 3 by 3 product
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through checking a single
Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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Learn: The sum of the roots of a cubic read from its coefficients
You are my personal SS3 Further Mathematics tutor. Teach me the sum of the roots of a cubi
Worked Example: The sum of the products of the roots of a cubic taken two at a time
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Quiz: The product of the roots of a cubic
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Practice: Finding the third root of a cubic when two are known
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WAEC Prep: Finding a coefficient of a cubic given one of its roots
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Structured question: find k so a cubic has a repeated root
I am in SS 3. Set me a structured question where a cubic contains an unknown k, and I must
Show All Working: Three roots in arithmetic progression in a cubic
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Domain of a function involving a square root
I am in SS 3. Teach me finding the domain of a function involving a square root, such as f
Structured question: quadratic with roots that differ by a given amount
I am in SS 3. Give me a structured question where I am told the roots of a quadratic diffe
Structured question: cubic equation from three given roots
I am in SS 3. Set me a structured question where I am given all three roots of a cubic equ
Final Revision: Solving a disguised quadratic by substitution
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Final Revision: Checking a symmetric-function answer by solving the equation outright
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Show All Working: Solving a cubic equation by factorisation
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Common Mistakes: Three roots in geometric progression in a cubic
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Final Revision: Checking that the roots found satisfy the original equation
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Give me an exam formula sheet for sum and product of roots
I am in SS 3. Build me a short formula sheet covering every formula I need for sum and pro