Question

Решите симтему уравнений
2xy=5
2x+y=6

Answer 1

[[/tex]$\left \{{{2xy=5} \atop {2x=6-y}} \right. (6-y)y=5 -y^{2}+6y-5=0 y^{2}-6y+5=0 d=36-20=16 y1=5,y2=1$

$x= \frac{6-y}{2} x1=2.5,x2=0.5$