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Learn and revise how to solve quadratic equations by factorising, completing the square and using the quadratic formula with Bitesize GCSE Maths Eduqas.
Cut-Polytopes, Boolean Quadric Polytopes and Nonnegative Quadratic Pseudo-Boolean Functions Endre Boros and Peter L. Hammer Mathematics of Operations Research , pp. 245-253 (9 pages) ...