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11-10-2022
Mathematics

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If using the method of completing the square to solve the quadratic equation
x^2+ 15x - 23 = 0, which number would have to be added to "complete the
square"?

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Source: Jean Froissart, 1395 "It is the custom in England, as with other countries for the nobility to have great power over the common people who are serts. Th