2 2 4*x - 40*x*y + 100*y ---------------------- 15*y - 3*x
(4*x^2 - 40*x*y + 100*y^2)/(15*y - 3*x) при y = 2
(4*x^2 - 40*x*y + 100*y^2)/(15*y - 3*x)
(4*x^2 - 40*x*(2) + 100*(2)^2)/(15*(2) - 3*x)
(4*x^2 - 40*x*2 + 100*2^2)/(15*2 - 3*x)
(400 - 80*x + 4*x^2)/(30 - 3*x)
2 2 4*x + 100*y - 40*x*y ---------------------- -3*x + 15*y
(4.0*x^2 + 100.0*y^2 - 40.0*x*y)/(15.0*y - 3.0*x)
2 2 4*x + 100*y - 40*x*y ---------------------- -3*x + 15*y
/ 2 \ 4*\25*y + x*(x - 10*y)/ ------------------------ 3*(-x + 5*y)
2 2 4*x + 100*y - 40*x*y ---------------------- 15*y - 3*x