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Resolver para \( x \) \[ -9 x-5=4 x^{2} \] Si existe más de una solución, sepárelas con comas, Si no existe solución, haga clic en "No tiene solución."

Ask by Schmidt Harmon. in Ecuador
Feb 27,2025

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Las soluciones son \( x = -\frac{5}{4} \) y \( x = -1 \).

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Bonus Knowledge

Primero, reescribamos la ecuación dada: \[ 4x^2 + 9x + 5 = 0 \] Ahora, identificamos los coeficientes: \(a = 4\), \(b = 9\), y \(c = 5\). Aplicamos la fórmula cuadrática: \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \] Calculamos el discriminante \(b^2 - 4ac\): \[ 9^2 - 4 \cdot 4 \cdot 5 = 81 - 80 = 1 \] Dado que el discriminante es positivo, hay dos soluciones reales. Sustituyendo en la fórmula cuadrática: \[ x = \frac{-9 \pm \sqrt{1}}{2 \cdot 4} = \frac{-9 \pm 1}{8} \] Esto nos da las soluciones: \[ x_1 = \frac{-8}{8} = -1 \quad \text{y} \quad x_2 = \frac{-10}{8} = -\frac{5}{4} \] Por lo tanto, las soluciones son \(x = -1, -\frac{5}{4}\).

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