12x2−(2a−6b)x+ab=012𝑥2-(2𝑎-6𝑏)𝑥+𝑎𝑏=0 In the given equation, a and b are positive constant numbers. The sum of the solutions to the given equation is k(a−3b)𝑘(𝑎-3𝑏), where k is a constant. What is the value of k?
Question
12x2−(2a−6b)x+ab=012𝑥2-(2𝑎-6𝑏)𝑥+𝑎𝑏=0 In the given equation, a and b are positive constant numbers. The sum of the solutions to the given equation is k(a−3b)𝑘(𝑎-3𝑏), where k is a constant. What is the value of k?
Solution
Para resolver esta ecuación cuadrática, utilizaremos la fórmula general para las ecuaciones de la forma , que es:
Dada la ecuación , identificamos los coeficientes:
La suma de las soluciones de una ecuación cuadrática está dada por .
Aplicamos esto a nuestra ecuación:
[ \text{Suma de las soluciones} = -\frac{B}{A} = -\frac{-(2a - 6b)}{12} = \frac{2a -
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