解方程 $$$\left(y - 6\right)^{2} + 81 = 102$$$,求$$$y$$$(实根)
您的输入
在区间$$$\left(-\infty, \infty\right)$$$上求解关于$$$y$$$的方程$$$\left(y - 6\right)^{2} + 81 = 102$$$。
答案
实根
$$$y = \sqrt{21} + 6\approx 10.58257569495584$$$A
$$$y = 6 - \sqrt{21}\approx 1.41742430504416$$$A
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