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Introduction to Imaginary Numbers || Algebra 2
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Completing The Square (The FASTEST Method) || Finding the Vertex & Zeros | Algebra 1
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visualising complex roots
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College Algebra Final Review (Part 1) || Complete the Square, Quadratic Formula, Inequality, & More!
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Algebra - Understanding Quadratic Equations
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Why There's 'No' Quintic Formula (proof without Galois theory)
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