左右同减(x - 6)²,变为（x - 1) (x- 6)² ＝ 25 - (x - 6)²即(x - 1)(x - 6)² ＝ (5 - x + 6)(5 + x -6) ＝ (x - 1)(11 - x)移项合并得到(x - 1)(x² - 11x + 25) ＝ 0解得x1 ＝ 1 x2 ＝ (11...