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Solving quadratic equations - Edexcel Solving by quadratic formula - BBC

Learn and revise how to solve quadratic equations by factorising, completing the square and using the quadratic formula with Bitesize GCSE Maths Edexcel.
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Quadratic equations - OCR Solving by quadratic formula - Higher - BBC

Learn about and revise quadratic equations by factorising, completing the square and using the quadratic formula with GCSE Bitesize OCR Maths.
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Bivariate $C^1$ Quadratic Finite Elements and Vertex Splines

Charles K. Chui, Tian-Xiao He, Bivariate $C^1$ Quadratic Finite Elements and Vertex Splines, Mathematics of Computation, Vol. 54, No. 189 (Jan., 1990), pp. 169-187 ...