2^x-x^4=0 la ecuación
El profesor se sorprenderá mucho al ver tu solución correcta😉
Solución
Suma y producto de raíces
[src]
/-log(2) \ /log(2)\
4*W|--------| 4*W|------|
\ 4 / \ 4 /
16 - ------------- - -----------
log(2) log(2)
$$- \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} + \left(- \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} + 16\right)$$
/-log(2) \ /log(2)\
4*W|--------| 4*W|------|
\ 4 / \ 4 /
16 - ------------- - -----------
log(2) log(2)
$$- \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} - \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} + 16$$
/-log(2) \ /log(2)\
-4*W|--------| -4*W|------|
\ 4 / \ 4 /
16*--------------*------------
log(2) log(2)
$$- \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} 16 \left(- \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}}\right)$$
/-log(2) \ /log(2)\
256*W|--------|*W|------|
\ 4 / \ 4 /
-------------------------
2
log (2)
$$\frac{256 W\left(- \frac{\log{\left(2 \right)}}{4}\right) W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}^{2}}$$
256*LambertW(-log(2)/4)*LambertW(log(2)/4)/log(2)^2
$$x_{1} = 16$$
/-log(2) \
-4*W|--------|
\ 4 /
x2 = --------------
log(2)
$$x_{2} = - \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}}$$
/log(2)\
-4*W|------|
\ 4 /
x3 = ------------
log(2)
$$x_{3} = - \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}}$$
x3 = -4*LambertW(log(2)/4)/log(2)