Question 405036
  <pre><font size = 3 color = "indigo"><b>
Hi


f(x) = 3x^3 + x^2 - 12x - 4
f(x) = (x-2)(3x^2 +7x +2)
f(x) = (x-2)(3x+1)(x+2)
Roots
  (x-2)(3x+1)(x+2)= 0
  (x-2)= 0  x = 2
  (3x+1)=0  x = -1/3
  (x+2)= 0  x = -2
{{{drawing(300,300, -10,10,-10,10, grid(1),
circle(2, 0,0.3),
circle(-1/3, 0,0.3),
circle(-2, 0,0.3),
circle(0, -4,0.3),

graph( 300, 300, -10,10,-10,10,3x^3 + x^2 - 12x - 4))}}}