x^2+84,8*x+741.4=0 la ecuación
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Solución
Teorema de Cardano-Vieta
es ecuación cuadrática reducida
$$p x + q + x^{2} = 0$$
donde
$$p = \frac{b}{a}$$
$$p = \frac{424}{5}$$
$$q = \frac{c}{a}$$
$$q = \frac{3707}{5}$$
Fórmulas de Cardano-Vieta
$$x_{1} + x_{2} = - p$$
$$x_{1} x_{2} = q$$
$$x_{1} + x_{2} = - \frac{424}{5}$$
$$x_{1} x_{2} = \frac{3707}{5}$$
Suma y producto de raíces
[src]
_______ _______
212 \/ 26409 212 \/ 26409
- --- - --------- + - --- + ---------
5 5 5 5
$$\left(- \frac{212}{5} - \frac{\sqrt{26409}}{5}\right) + \left(- \frac{212}{5} + \frac{\sqrt{26409}}{5}\right)$$
$$- \frac{424}{5}$$
/ _______\ / _______\
| 212 \/ 26409 | | 212 \/ 26409 |
|- --- - ---------|*|- --- + ---------|
\ 5 5 / \ 5 5 /
$$\left(- \frac{212}{5} - \frac{\sqrt{26409}}{5}\right) \left(- \frac{212}{5} + \frac{\sqrt{26409}}{5}\right)$$
$$\frac{3707}{5}$$
_______
212 \/ 26409
x1 = - --- - ---------
5 5
$$x_{1} = - \frac{212}{5} - \frac{\sqrt{26409}}{5}$$
_______
212 \/ 26409
x2 = - --- + ---------
5 5
$$x_{2} = - \frac{212}{5} + \frac{\sqrt{26409}}{5}$$
x2 = -212/5 + sqrt(26409)/5