x(x + 5) = 36
x² + 5x - 36 = 0
D = 5² - 4 * 1 * (-36) = 25 + 144 = 169 = 13²
Ответ: -9; 4
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x(x + 5) = 36
x² + 5x - 36 = 0
D = 5² - 4 * 1 * (-36) = 25 + 144 = 169 = 13²
Ответ: -9; 4