2X的平方-X=58怎么解
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2X的平方-X=58怎么解
![2X的平方-X=58怎么解](/uploads/image/z/16720530-42-0.jpg?t=2X%E7%9A%84%E5%B9%B3%E6%96%B9-X%3D58%E6%80%8E%E4%B9%88%E8%A7%A3)
2X² - X = 58
X² - X/2 = 29
X² - X/2 + 1/16 = 463/16
(X - 1/4)² = 463/16
X - 1/4 = ± √463 / 4
X = 1/4 ± √463 / 4
X² - X/2 = 29
X² - X/2 + 1/16 = 463/16
(X - 1/4)² = 463/16
X - 1/4 = ± √463 / 4
X = 1/4 ± √463 / 4