Y(2-y)-(y-y2)= 2y-y2-y+y2=2y-y=y
3x^2-11x-14=3x^2+3x-14x-14=(3x-14)(x+1)
X^2-36=0
(x-6)(x+6)=0
x1=6
x2=-6
6>-6
Ответ: 6
X²-6x-16=0
x1+x2=6 U x1*x2=-16
x1=-2 U x2=8
-x²+8x-12=0
x²-8x+12=0
x1+x2=8 u x1*x2=12
x1=2 U x2=6
_ + _ + _
--------------[-2]---------(2)---------------(6)-----------[8]--------------
x∈[-2;2) U (6;8]