Question 860137
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
F(x)=3x^3+2x^2-12x-8  x = 2 one root
Using Synthetic Division to find other 
2	3	2	-12	-8
		6	16	8
	3	8	4	0
F(x)= (x-2)(3x^2 + 8x + 4) = (x-2)(3x+2)(x+2)
All zeros are:  -2, -2/3, 2
{{{drawing(300,300,   -10,10,-10,10, 
 grid(1),
circle(2, 0,0.4),
circle(-2/3, 0,0.4),
circle(-2, 0,0.4),
graph( 300, 300, -10,10,-10,10,0,3x^3+2x^2-12x-8  ))}}}