1,044 prompts matching "Checking that the roots found satisfy the original equation"
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Quiz: Which values are worth testing as factors
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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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Quiz: Factorising a polynomial by grouping terms
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Explain Back: A polynomial with a repeated linear factor
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Learn: Solving a cubic once it has been factorised
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Learn: What makes a sentence a proposition
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Final Revision: A compound proposition built from three simple ones
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Learn: How many rows a truth table needs
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Worked Example: Conjunction in a three-variable truth table
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Practice: Negation combined with a compound statement
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WAEC Prep: A truth table with three propositions in it
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Quiz: Why a conditional with a false antecedent counts as true
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WAEC Prep: Why a conditional and its contrapositive are equivalent
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Final Revision: A conditional statement set in an everyday situation
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Practice: What logical equivalence means
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Explain Back: Showing two statements equivalent by truth table
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Learn: What a tautology is
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Worked Example: What a contradiction is
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Quiz: What a contingency is
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