Question

решите систему пожалуйста

Answer 1

${(x + 4)}^{2} - {(x + 2)}^{2} = 2y + 23 \ {(y + 5)}^{2} - {(y + 1)}^{2} = 6x + 15 \ \ (x + 4 + x + 2)(x + 4 - x - 2) = 2y + 23 \ (y + 5 + y + 1)(y + 5 - y - 1) = 6x + 15 \ \ (2x + 6) times 2 = 2y + 23 \ (2y + 6) times 4 = 6x + 15 \ \ 4x + 12 = 2y + 23 \ 8y + 24 = 6x + 15 \ \ 4x - 2y = 11 \ 6x - 8y = 9 \ \16x - 8y = 44 \ 6x - 8y = 9 \ \ 10x = 35 \ y = frac{4x - 11}{2} \ \ x = 3.5 \ y = 1.5$
Ответ: (3,5; 1,5)

Answer 2

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