Formula and completing the square – basic stuff for School maths students expressed loud and clear in Carr’s Synopsis of Elementary Results in 1880 – find a proof of 45 by using ideas in 47 and teach yourself to be a mathematical genius.

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Formula and completing the square – basic stuff for School maths students expressed loud and clear in Carr’s Synopsis of Elementary Results in 1880 – find a proof of 45 by using ideas in 47 and teach yourself to be a mathematical genius.

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