Sr Examen

Otras calculadoras


8^x-9*2^(x+1)+2^(5-x)=0

8^x-9*2^(x+1)+2^(5-x)=0 la ecuación

El profesor se sorprenderá mucho al ver tu solución correcta😉

v

Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
 x      x + 1    5 - x    
8  - 9*2      + 2      = 0
$$2^{5 - x} + \left(- 9 \cdot 2^{x + 1} + 8^{x}\right) = 0$$
Gráfica
Respuesta rápida [src]
x1 = 1/2
$$x_{1} = \frac{1}{2}$$
x2 = 2
$$x_{2} = 2$$
     log(4)    pi*I 
x3 = ------ + ------
     log(2)   log(2)
$$x_{3} = \frac{\log{\left(4 \right)}}{\log{\left(2 \right)}} + \frac{i \pi}{\log{\left(2 \right)}}$$
     1    pi*I 
x4 = - + ------
     2   log(2)
$$x_{4} = \frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}}$$
x4 = 1/2 + i*pi/log(2)
Suma y producto de raíces [src]
suma
          log(4)    pi*I    1    pi*I 
1/2 + 2 + ------ + ------ + - + ------
          log(2)   log(2)   2   log(2)
$$\left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}}\right) + \left(\left(\frac{1}{2} + 2\right) + \left(\frac{\log{\left(4 \right)}}{\log{\left(2 \right)}} + \frac{i \pi}{\log{\left(2 \right)}}\right)\right)$$
=
    log(4)   2*pi*I
3 + ------ + ------
    log(2)   log(2)
$$\frac{\log{\left(4 \right)}}{\log{\left(2 \right)}} + 3 + \frac{2 i \pi}{\log{\left(2 \right)}}$$
producto
2 /log(4)    pi*I \ /1    pi*I \
-*|------ + ------|*|- + ------|
2 \log(2)   log(2)/ \2   log(2)/
$$\frac{2}{2} \left(\frac{\log{\left(4 \right)}}{\log{\left(2 \right)}} + \frac{i \pi}{\log{\left(2 \right)}}\right) \left(\frac{1}{2} + \frac{i \pi}{\log{\left(2 \right)}}\right)$$
=
(pi*I + log(4))*(2*pi*I + log(2))
---------------------------------
                 2               
            2*log (2)            
$$\frac{\left(\log{\left(2 \right)} + 2 i \pi\right) \left(\log{\left(4 \right)} + i \pi\right)}{2 \log{\left(2 \right)}^{2}}$$
(pi*i + log(4))*(2*pi*i + log(2))/(2*log(2)^2)
Respuesta numérica [src]
x1 = 0.5
x2 = 2.0
x3 = 2.0 + 4.53236014182719*i
x4 = 0.5 + 4.53236014182719*i
x4 = 0.5 + 4.53236014182719*i
Gráfico
8^x-9*2^(x+1)+2^(5-x)=0 la ecuación