0\\OD3:x>0\\\log_2x=y\\y^2+8x+15>0\\\\y^2+8x+15=0\\D=64-60=2^2\\y_{1,2}=\frac{-8\pm 2}{2}=\left |{ {{-3} \atop {-5}} \right. \\+++(-5)---(-3)+++>y\\\\ \left [{ {{y>-3} \atop {y<-5}} \right. \left [{ {{\log_2x>-3} \atop {\log_2x<-5}} \right. \left [{ {{x>\frac{1}{8}} \atop {00\\OD3:x>0\\\log_2x=y\\y^2+8x+15>0\\\\y^2+8x+15=0\\D=64-60=2^2\\y_{1,2}=\frac{-8\pm 2}{2}=\left |{ {{-3} \atop {-5}} \right. \\+++(-5)---(-3)+++>y\\\\ \left [{ {{y>-3} \atop {y<-5}} \right. \left [{ {{\log_2x>-3} \atop {\log_2x<-5}} \right. \left [{ {{x>\frac{1}{8}} \atop {0
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