y = x(x+5)
-6 = x(x+5)
-6 = x^2 + 5x
x^2 + 5x + 6 = 0
По теореме Виета :
x1 + x2 = -5
x1 * x2 = 6
x1 = -2
x2 = -3
ответ : при x = -2 , x = -3
y = x(x+5)
-6 = x(x+5)
-6 = x^2 + 5x
x^2 + 5x + 6 = 0
По теореме Виета :
x1 + x2 = -5
x1 * x2 = 6
x1 = -2
x2 = -3
ответ : при x = -2 , x = -3