Question

Как решать подобные уравнения? х(х-2)/х^2+4=0

Answer 1

$\frac{x(x-2)}{x^2+4} =0\; \; \to \; \; \left \{ {{x(x-2)=0} \atop {x^2+4\ne 0}} \right. \; \left \{ {{x_1=0,\; x_2=2} \atop {x^2+4\ \textgreater \ 0\; pri\; x\in R}} \right. \; \; \to \; \; x_1=0,\; x_2=2$