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简化 X2 + y2 + -6x + -2y + 1 = 0 重新排序条件: 1 + X2 + -6x + -2y + y2 = 0 解: 1 + X2 + -6x + -2y + y2 = 0 求解变量 'X'. 移动所有含x 的放右边,所有其它条件放左边. 增加 '-1' 到方程的每一侧. 1 + X2 + -6x + -2y + -1 + y2 = 0 + -1 重新排序条件: 1 + -1 + X2 + -6x + -2y + y2 = 0 + -1 结合相似条件: 1 + -1 = 0 0 + X2 + -6x + -2y + y2 = 0 + -1 X2 + -6x + -2y + y2 = 0 + -1 结合相似条件: 0 + -1 = -1 X2 + -6x + -2y + y2 = -1 增加 '6x' 到方程的每一侧. X2 + -6x + -2y + 6x + y2 = -1 + 6x 重新排序条件: X2 + -6x + 6x + -2y + y2 = -1 + 6x 结合相似条件: -6x + 6x = 0 X2 + 0 + -2y + y2 = -1 + 6x X2 + -2y + y2 = -1 + 6x 增加 '2y' 到方程的每一侧. X2 + -2y + 2y + y2 = -1 + 6x + 2y 结合相似条件: -2y + 2y = 0 X2 + 0 + y2 = -1 + 6x + 2y X2 + y2 = -1 + 6x + 2y 增加 '-1y2' 到方程的每一侧. X2 + y2 + -1y2 = -1 + 6x + 2y + -1y2 结合相似条件: y2 + -1y2 = 0 X2 + 0 = -1 + 6x + 2y + -1y2 X2 = -1 + 6x + 2y + -1y2 简化 X2 = -1 + 6x + 2y + -1y2 重新排序条件: 1 + X2 + -6x + -2y + y2 = -1 + 6x + 2y + -1y2 + 1 + -6x + -2y + y2 重新排序条件: 1 + X2 + -6x + -2y + y2 = -1 + 1 + 6x + -6x + 2y + -2y + -1y2 + y2 结合相似条件: -1 + 1 = 0 1 + X2 + -6x + -2y + y2 = 0 + 6x + -6x + 2y + -2y + -1y2 + y2 1 + X2 + -6x + -2y + y2 = 6x + -6x + 2y + -2y + -1y2 + y2 结合相似条件: 6x + -6x = 0 1 + X2 + -6x + -2y + y2 = 0 + 2y + -2y + -1y2 + y2 1 + X2 + -6x + -2y + y2 = 2y + -2y + -1y2 + y2 结合相似条件: 2y + -2y = 0 1 + X2 + -6x + -2y + y2 = 0 + -1y2 + y2 1 + X2 + -6x + -2y + y2 = -1y2 + y2 结合相似条件: -1y2 + y2 = 0 1 + X2 + -6x + -2y + y2 = 0 无法确定此方程的解.
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