Question 4144
<pre>>>please write in steps and please explain each.
thank you for your help
Solve for x:
2x<sup>3</sup>+9x<sup>2</sup>+4x = 0 <<
Factor out x on the left:
x(2x<sup>2</sup>+9x+4) = 0
Factor the trinomial in parentheses:
x(x+4)(2x+1) = 0
Set each factor = 0
x = 0  (that's one solution)
x+4 = 0
  x = -4 (that's a second solution)
2x+1 = 0
  2x = -1
   x = -1/2 (that's the third solution)
Edwin