разделим (1) на (2)
\left \{ {y=8x} \atop {(8x)^2x^3=2}} \right.<=>\left \{ {y=8x} \atop {64x^5=2}} \right.<=>\left \{ {y=8x} \atop {x^5=\frac{2}{64}} \right.<=>\\\ \\\ <=>\left \{ {y=8x} \atop {x^5=\frac{1}{32}} \right.<=>\left \{ {y=8x} \atop {x=\frac{1}{2}} \right.<=>\left \{ {y=8*\frac{1}{2}} \atop {x=\frac{1}{2}} \right.<=>\left \{ {y=4}} \atop {x=\frac{1}{2}} \right." alt="\left \{ {{\frac{y}{x}=8} \atop {y^2x^3=2}} \right.<=>\left \{ {y=8x} \atop {(8x)^2x^3=2}} \right.<=>\left \{ {y=8x} \atop {64x^5=2}} \right.<=>\left \{ {y=8x} \atop {x^5=\frac{2}{64}} \right.<=>\\\ \\\ <=>\left \{ {y=8x} \atop {x^5=\frac{1}{32}} \right.<=>\left \{ {y=8x} \atop {x=\frac{1}{2}} \right.<=>\left \{ {y=8*\frac{1}{2}} \atop {x=\frac{1}{2}} \right.<=>\left \{ {y=4}} \atop {x=\frac{1}{2}} \right." align="absmiddle" class="latex-formula">