Ответ:
(x - 4)² + (x + 3)² = 2x²
x² - 8x + 16 + x² + 6x + 9 = 2x²
2x² - 2x + 25 = 2x²
-2x = -25
x = 25 : 2
x = 12,5
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Ответ:
(x - 4)² + (x + 3)² = 2x²
x² - 8x + 16 + x² + 6x + 9 = 2x²
2x² - 2x + 25 = 2x²
-2x = -25
x = 25 : 2
x = 12,5