(1-3x)*(2x+4)=0
2x+4-6x^2-12x=0
-6x^2-10x+4=0
D=10^2-4*-6*4=196 √196=14
x₁=(10-14)/2*-6=-4/-12
x₂=(10+14)/2*-6=24/-12
x₁=1/3
x₂=-2
x*(x-0.5)*(2x+6)=0
x=0, или х-0.5=0, или 2х+6=0
x₁=0
x₂=0.5 (x-0.5=0 => x=0.5)
x₃=-3 (2x+6=0 =>2x=-6 => x=-3)
3x*(5x+8)*(x-1)=0
3x=0, или 5х+8=0, или х-1=0
x₁=0 (3x=0 => x=0)
x₂= -1.6 (5x+8=0 => 5x=-8 => x=-8/5 => x=-1.6)
x₃=1 (x-1=0 => x=1)
(1-3x)*(2x+4)=0
2x+4-6x^2-12x=0
-6x^2-10x+4=0
D=10^2-4*-6*4=196 √196=14
x₁=(10-14)/2*-6=-4/-12
x₂=(10+14)/2*-6=24/-12
x₁=1/3
x₂=-2
x*(x-0.5)*(2x+6)=0
x=0, или х-0.5=0, или 2х+6=0
x₁=0
x₂=0.5 (x-0.5=0 => x=0.5)
x₃=-3 (2x+6=0 =>2x=-6 => x=-3)
3x*(5x+8)*(x-1)=0
3x=0, или 5х+8=0, или х-1=0
x₁=0 (3x=0 => x=0)
x₂= -1.6 (5x+8=0 => 5x=-8 => x=-8/5 => x=-1.6)
x₃=1 (x-1=0 => x=1)