509 prompts matching "When Cramer's rule is quicker than elimination"
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Common sign errors in algebraic manipulation
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Learn: Telling a rational number from an irrational one
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Learn: What makes two surds similar
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Worked Example: What makes two surds equal
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Quiz: Reducing two surds to the same root in order to compare them
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Show All Working: Deciding whether two given surds are equal without a calculator
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Learn: Simplifying root 72 into its simplest form
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Worked Example: Adding two surds that simplify to the same root
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Quiz: Subtracting one surd from another
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WAEC Prep: Squaring a single surd
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Show All Working: Simplifying a surd expression that contains brackets
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Learn: The conjugate of a compound surd expression
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Worked Example: Why multiplying by the conjugate clears the surd
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WAEC Prep: Expressing the answer in the form a plus b root c
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Show All Working: A conjugate where the surd term comes first
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Learn: Solving an equation with a single square root term
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Quiz: Checking a surd equation for extraneous roots
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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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