728 prompts matching "Simplifying an expression carrying both a negative and a fractional index"
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Coordinate geometry applied to a triangle's area check
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Solving simultaneous linear equations by substitution
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Solving simultaneous linear equations by elimination
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Changing the subject of a simple formula
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Changing the subject when the variable appears twice
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Changing the subject with a square or square root
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Solving a word problem using simultaneous equations
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Cross-multiplying to solve an equation with fractions
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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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Common Mistakes: Why a rational number added to an irrational one stays irrational
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Final Revision: Surds that cannot be combined at all
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Quiz: Subtracting one surd from another
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Spot My Mistake: Dividing one surd by another
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Show All Working: Checking a rationalised answer by decimal approximation
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Final Revision: Expressing a rationalised answer in the form a root b over c
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WAEC Prep: Expressing the answer in the form a plus b root c
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Final Revision: Checking a conjugate answer by multiplying back
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Learn: Solving an equation with a single square root term
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Worked Example: Squaring both sides safely when solving a surd equation
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