Y^3+6y^2-y-6=0 Y^3-12=3y^3-4y Решите

Question

Y^3+6y^2-y-6=0
Y^3-12=3y^3-4y
Решите

Comments

y^3+6y^2-y-6=06(y^2-1)+y(y^2-1)=0(6+y)(y^2-1)=0y= -6y=1y= -1

Answer 1

Y^3+6y^2-y-6=0
6(y^2-1)+y(y^2-1)=0
(6+y)(y^2-1)=0
y= -6
y=1
y= -1