Решите уравнения
-11x2-4x+36=0
- 11x² - 4x + 36 = 0
11x² + 4x - 36 = 0
D = b² - 4ac = 16 - 4×11×(-36) = 16 + 1584 = 1600 = 40²
x1 = ( - 4 + 40) / 22 = 36/22 = 18/11= 1 целая 7/11
x2 = ( - 4 - 40) / 22 = - 44/22 = - 2
Ответ: x1 = 1целая 7/11, x2 = - 2.
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