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Solución de sistemas de ecuaciones/ xy=4; y-x=1

xy=4; y-x=1

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Gráfico:

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interior superior

Solución

Ha introducido [src] 
x*y = 4
xy=4x y = 4 
y - x = 1
−x+y=1- x + y = 1 
-x + y = 1
Respuesta rápida
x1=−12+172x_{1} = - \frac{1}{2} + \frac{\sqrt{17}}{2}
=
−12+172- \frac{1}{2} + \frac{\sqrt{17}}{2}
=
1.56155281280883

y1=12+172y_{1} = \frac{1}{2} + \frac{\sqrt{17}}{2}
=
12+172\frac{1}{2} + \frac{\sqrt{17}}{2}
=
2.56155281280883
x2=−172−12x_{2} = - \frac{\sqrt{17}}{2} - \frac{1}{2}
=
−172−12- \frac{\sqrt{17}}{2} - \frac{1}{2}
=
-2.56155281280883

y2=12−172y_{2} = \frac{1}{2} - \frac{\sqrt{17}}{2}
=
12−172\frac{1}{2} - \frac{\sqrt{17}}{2}
=
-1.56155281280883
Respuesta numérica [src] 
x1 = 1.56155281280883
y1 = 2.56155281280883
x2 = -2.56155281280883
y2 = -1.56155281280883
x2 = -2.56155281280883
y2 = -1.56155281280883
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