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单词 completing the square
释义

WordReference Random House Unabridged Dictionary of American English © 2024
completing the square, [Math.]
  1. Mathematicsa method, usually of solving quadratic equations, by which a quadratic expression, as x2 - 4x + 3, is written as the sum or difference of a perfect square and a constant, x2 - 4x + 4 + 3 - 4 = (x - 2)2 - 1, by addition and subtraction of appropriate constant terms.

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更新时间:2024/9/21 1:51:21