Автор - samvelavetisya

Решите уравнение (х-4)²+(х+9)²=2х²

Ответ

Автор - 89093137632
Х^2 - 8Х + 16 + Х^2 + 18Х +81 = 2Х^2
Х^2 + X^2 - 2X^2 - 8X + 18X + 16 +81 =0
10X + 97 = 0
10X = -97
X = - 9,7

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