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Utilizar la fórmula cuadrática para resolver para \( x \). \[ 2 x^{2}+7 x-6=0 \] Redondear la respuesta a la centésima más cercana. Si existe más de una solución, separarlas por comas.

Ask by Macdonald Weaver. in Ecuador
Jan 15,2025

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The solutions are \( x \approx 0.71 \) and \( x \approx -4.21 \).

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Para resolver la ecuación \( 2x^{2}+7x-6=0 \) utilizando la fórmula cuadrática, utilizamos la fórmula \( x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \), donde \( a = 2 \), \( b = 7 \) y \( c = -6 \). Primero, calculamos el discriminante: \[ b^2 - 4ac = 7^2 - 4 \cdot 2 \cdot (-6) = 49 + 48 = 97 \] Luego, sustituyendo en la fórmula cuadrática: \[ x = \frac{-7 \pm \sqrt{97}}{4} \] Calculando \( \sqrt{97} \) que es aproximadamente \( 9.85 \): \[ x = \frac{-7 + 9.85}{4} \quad \text{y} \quad x = \frac{-7 - 9.85}{4} \] \[ x_1 = \frac{2.85}{4} \approx 0.71 \] \[ x_2 = \frac{-16.85}{4} \approx -4.21 \] Por lo tanto, las soluciones son \( x \approx 0.71, -4.21 \).

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