755 prompts matching "Explain the quadratic formula back to me"
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Subsets of a given set
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Distance between two coordinate points
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Gradient of a line joining two points
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Common sign errors in algebraic manipulation
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Worked Example: What makes two surds equal
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Worked Example: Squaring both sides safely when solving a surd equation
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Worked Example: Testing a*b against b*a for a given rule
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Worked Example: Rewriting a negative index as a fraction
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Multiplication law of indices
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Division law of indices
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Negative indices as fractions
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Fractional indices as roots
I am in SS 1. Teach me fractional indices, converting between root form and index form, su
Index equations with a fractional right-hand side
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Standard form calculations using indices
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Finding an unknown exponent in an equation
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Laws of indices with three different bases in one line
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Multiplying and dividing indices in one expression
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Evaluating a negative fractional index
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Simplifying before substituting a value
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Solving 9^x x 3^(x+1) = 1
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