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(a - b)² = a² + 2ab - b²
...........................................................
(x - 2)² = 1 + (3 - x)²
x² + 2(x)(2) - 2² = 1 + 3² + 2(3)(x) - x²
x² + 4x - 4 = 1 + 9 + 6x - x²
x² + 4x - 4 = 10 + 6x - x²
x² + x² + 4x - 6x = 10 + 4
2x² - 2x = 14
2x² - 2x - 14 = 0
Sacamos factor común.
2(x² - x - 7) = 0
No hay solución, no tiene raíces.