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log(x+a)+(x+b)*5=0 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
log(x + a) + (x + b)*5 = 0
$$5 \left(b + x\right) + \log{\left(a + x \right)} = 0$$
Gráfica
Respuesta rápida [src]
                / /   -5*b + 5*a\\     /           / /   -5*b + 5*a\\\
              re\W\5*e          //     |         im\W\5*e          //|
x1 = -re(a) + -------------------- + I*|-im(a) + --------------------|
                       5               \                  5          /
$$x_{1} = i \left(- \operatorname{im}{\left(a\right)} + \frac{\operatorname{im}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}\right) - \operatorname{re}{\left(a\right)} + \frac{\operatorname{re}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}$$
x1 = i*(-im(a) + im(LambertW(5*exp(5*a - 5*b)))/5) - re(a) + re(LambertW(5*exp(5*a - 5*b)))/5
Suma y producto de raíces [src]
suma
           / /   -5*b + 5*a\\     /           / /   -5*b + 5*a\\\
         re\W\5*e          //     |         im\W\5*e          //|
-re(a) + -------------------- + I*|-im(a) + --------------------|
                  5               \                  5          /
$$i \left(- \operatorname{im}{\left(a\right)} + \frac{\operatorname{im}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}\right) - \operatorname{re}{\left(a\right)} + \frac{\operatorname{re}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}$$
=
           / /   -5*b + 5*a\\     /           / /   -5*b + 5*a\\\
         re\W\5*e          //     |         im\W\5*e          //|
-re(a) + -------------------- + I*|-im(a) + --------------------|
                  5               \                  5          /
$$i \left(- \operatorname{im}{\left(a\right)} + \frac{\operatorname{im}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}\right) - \operatorname{re}{\left(a\right)} + \frac{\operatorname{re}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}$$
producto
           / /   -5*b + 5*a\\     /           / /   -5*b + 5*a\\\
         re\W\5*e          //     |         im\W\5*e          //|
-re(a) + -------------------- + I*|-im(a) + --------------------|
                  5               \                  5          /
$$i \left(- \operatorname{im}{\left(a\right)} + \frac{\operatorname{im}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}\right) - \operatorname{re}{\left(a\right)} + \frac{\operatorname{re}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}$$
=
           / /   -5*b + 5*a\\     /           / /   -5*b + 5*a\\\
         re\W\5*e          //     |         im\W\5*e          //|
-re(a) + -------------------- + I*|-im(a) + --------------------|
                  5               \                  5          /
$$i \left(- \operatorname{im}{\left(a\right)} + \frac{\operatorname{im}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}\right) - \operatorname{re}{\left(a\right)} + \frac{\operatorname{re}{\left(W\left(5 e^{5 a - 5 b}\right)\right)}}{5}$$
-re(a) + re(LambertW(5*exp(-5*b + 5*a)))/5 + i*(-im(a) + im(LambertW(5*exp(-5*b + 5*a)))/5)