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x² + (x)² + 2(x)(1) + (1)² = 85
x² + x² + 2x + 1 = 85
2x² + 2x + 1 = 85
2x² + 2x + 1 - 85 = 0
2x² + 2x + - 84 = 0
x² + x - 42 = 0
x +7
x -6 [En aspa]
-6 + 7x = +x [Sí cumple]
(x + 7)(x - 6) = 0
x + 7 = 0
x = -7
x - 6 = 0
• x = 6
Si:
x = 6
Entonces:
x + 1 = 7
Por lo tanto los números son: 6 y 7