458 prompts matching "Solving a cubic that must first be rearranged"
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Worked Example: Why the square root of a non-square whole number is irrational
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Explain Back: Where the surds sit on the number line
I have just studied where the surds sit on the number line in my SS1 Further Mathematics c
Spot My Mistake: The decimal expansion of an irrational number, and why it never repeats
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Spot My Mistake: Why root 8 and root 2 turn out to be similar
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Worked Example: Adding two surds that simplify to the same root
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Show All Working: Simplifying a surd expression that contains brackets
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Worked Example: Rationalising a denominator that is a single surd
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Spot My Mistake: Simplifying the denominator once the conjugate has been used
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Worked Example: Squaring both sides safely when solving a surd equation
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Common Mistakes: A surd equation that has no real solution
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Final Revision: A word problem that leads to an equation in surd form
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Common Mistakes: A binary operation that is ordinary addition in disguise
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Worked Example: Testing the even numbers for closure under addition
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Quiz: Testing the odd numbers for closure under addition
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Final Revision: Why closure is checked before any other property
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Learn: What it means for an operation to be commutative
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Explain Back: What it means for an operation to be associative
I have just studied what it means for an operation to be associative in my SS1 Further Mat
WAEC Prep: An operation that is commutative but not associative
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Show All Working: An operation that is associative but not commutative
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