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4 August, 13:29

Dos numeros naturales se diferencian en 7 unidades y la suma de sus cuadrados es 289

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  1. 4 August, 17:10
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    15 y 8

    Step-by-step explanation:

    y = x - 7

    x² + y² = 289

    sustituir: x² + (x - 7) ² = 289

    distribuir: x² + x² - 14x + 49 = 289

    sustraer + simplificar: 2x² - 14x - 240 = 0

    dividir: x² - 7x - 120 = 0

    x² - 15x + 8x - 120 = 0

    (x - 15) (x + 8) = 0

    x = 15, x = - 8 - -> x ≠ - 8 porque - 8 no es naturales

    sustituir: y = 15 - 7

    simplificar: y = 8
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