755 prompts matching "Completing the square when the roots are not real"
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Explaining the difference between an expression and an equation
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Common Mistakes: Expanding the product of two surd brackets
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Practice: Rationalising a denominator with a whole number multiplying the surd
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Worked Example: Why multiplying by the conjugate clears the surd
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Show All Working: A conjugate where the surd term comes first
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WAEC Prep: Equating the rational and the irrational parts of an equation
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Worked Example: Reading the symbol used for a binary operation
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Worked Example: Testing the even numbers for closure under addition
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Final Revision: Why closure is checked before any other property
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Common Mistakes: Subtraction as an example of neither law
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Worked Example: Testing whether star distributes over plus
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Final Revision: Why distributivity links two operations rather than one
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Worked Example: Finding the identity element from a rule such as a*b = a + b - 3
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WAEC Prep: The inverse of the identity element itself
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Common Mistakes: Checking an inverse by working the operation both ways
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Final Revision: Identity and inverse together, and what they give the set
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Worked Example: The law for multiplying powers of the same base
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Common Mistakes: Why the index laws need the bases to match
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Final Revision: Evaluating a numerical expression using the index laws
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WAEC Prep: Evaluating 8 to the power two-thirds
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