755 prompts matching "solve x^2+4x+13=0 giving the roots as complex numbers"
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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IGCSE Additional Maths Y10: An equation in x to the power one-third solved as a quadratic — Exam Technique
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IGCSE Additional Maths Y10: Expressing the root of an algebraic term as an index — Spot My Mistake
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Surds arising from Pythagoras' theorem
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Changing the subject with a square or square root
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Fractional indices as roots
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Explaining why a^1/n means the nth root of a
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Simplifying the square root of a larger number
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Working with cube roots as a type of surd
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Full WAEC-style set theory past question
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Logical reasoning puzzle solved using sets
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Worked Example: Why the square root of a non-square whole number is irrational
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Practice: Deciding whether root 16 is rational or irrational
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Quiz: Reducing two surds to the same root in order to compare them
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Explain Back: Why 2 root 3 and 5 root 3 count as similar surds
I have just studied why 2 root 3 and 5 root 3 count as similar surds in my SS1 Further Mat
Common Mistakes: Expressing root 50 as a multiple of root 2
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Worked Example: Adding two surds that simplify to the same root
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Quiz: Rationalising a denominator of the form one over root 3
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Final Revision: Expressing a rationalised answer in the form a root b over c
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