2xy - 3x + 3y - 2y^{2}=3(у-х)-2у(у-х)=(3-2у)(у-х)
при х = 11,5, у = 6,5
(3-2у)(у-х)=(3-2*11,5)(6,5-11,5)=(3-23)(-5)=(-20)(-5)=100
2*11,5*6,5-3*11,5+3*6,5-2*(6,5)^2=149,5-34,5+19,5-84,5=50
2xy - 3x + 3y - 2y^{2}=3(у-х)-2у(у-х)=(3-2у)(у-х)
при х = 11,5, у = 6,5
(3-2у)(у-х)=(3-2*11,5)(6,5-11,5)=(3-23)(-5)=(-20)(-5)=100
2*11,5*6,5-3*11,5+3*6,5-2*(6,5)^2=149,5-34,5+19,5-84,5=50