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Solución de sistemas de ecuaciones/ ab=81; a-b=-1

ab=81; a-b=-1

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Gráfico:

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interior superior

Solución

Ha introducido [src] 
a*b = 81
ab=81a b = 81 
a - b = -1
a−b=−1a - b = -1 
a - b = -1
Respuesta rápida
a1=−12+5132a_{1} = - \frac{1}{2} + \frac{5 \sqrt{13}}{2}
=
−12+5132- \frac{1}{2} + \frac{5 \sqrt{13}}{2}
=
8.51387818865997

b1=12+5132b_{1} = \frac{1}{2} + \frac{5 \sqrt{13}}{2}
=
12+5132\frac{1}{2} + \frac{5 \sqrt{13}}{2}
=
9.51387818865997
a2=−5132−12a_{2} = - \frac{5 \sqrt{13}}{2} - \frac{1}{2}
=
−5132−12- \frac{5 \sqrt{13}}{2} - \frac{1}{2}
=
-9.51387818865997

b2=12−5132b_{2} = \frac{1}{2} - \frac{5 \sqrt{13}}{2}
=
12−5132\frac{1}{2} - \frac{5 \sqrt{13}}{2}
=
-8.51387818865997
Respuesta numérica [src] 
a1 = -9.513878188659973
b1 = -8.513878188659973
a2 = 8.513878188659973
b2 = 9.513878188659973
a2 = 8.513878188659973
b2 = 9.513878188659973
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