If the domain of the function f(x)=√(log_(0.6)(|(2 x-5)/(x^2-4)|)) is (-∞, a ] ∪{ b } ∪[ c, d ) ∪( e, ∞), then the value of a + b + c + d + e is ____.

If the domain of the function $\displaystyle f(x)=\sqrt{\log _{(0.6)}\left(\left|\frac{2 x-5}{x^2-4}\right|\right)}$ is $\displaystyle (-\infty, \mathrm{a}] \cup\{\mathrm{b}\} \cup[\mathrm{c}, \mathrm{d}) \cup(\mathrm{e}, \infty)$, then the value of $\displaystyle \mathrm{a}+\mathrm{b}+\mathrm{c}+\mathrm{d}+\mathrm{e}$ is $\displaystyle \_\_\_\_$.