Pritchard Barrett
02/05/2024 · Senior High School
\( x = \frac { - [ 2 ] \pm \sqrt { ( [ 2 ) ^ { 2 } - 4 ( [ 1 ] ) ( [ - 3 ] ) } } { 2 ( [ 1 ] ) } \)
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Step-by-step Solution
La expresión que has proporcionado parece ser una forma de la fórmula cuadrática. Vamos a resolverla paso a paso.
La fórmula cuadrática es:
\[
x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
\]
En tu caso, parece que los valores son:
- \( a = 1 \)
- \( b = 2 \)
- \( c = -3 \)
Sustituyendo estos valores en la fórmula:
1. Calculamos \( b^2 - 4ac \):
\[
b^2 = (2)^2 = 4
\]
\[
4ac = 4 \cdot 1 \cdot (-3) = -12
\]
\[
b^2 - 4ac = 4 - (-12) = 4 + 12 = 16
\]
2. Ahora sustituimos en la fórmula:
\[
x = \frac{-2 \pm \sqrt{16}}{2 \cdot 1}
\]
3. Calculamos la raíz cuadrada:
\[
\sqrt{16} = 4
\]
4. Sustituyendo de nuevo:
\[
x = \frac{-2 \pm 4}{2}
\]
Esto nos da dos soluciones:
- Para \( x_1 \):
\[
x_1 = \frac{-2 + 4}{2} = \frac{2}{2} = 1
\]
- Para \( x_2 \):
\[
x_2 = \frac{-2 - 4}{2} = \frac{-6}{2} = -3
\]
Por lo tanto, las soluciones de la ecuación son:
\[
x = 1 \quad \text{y} \quad x = -3
\]
Quick Answer
Las soluciones de la ecuación son \( x = 1 \) y \( x = -3 \).
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