Question 621967
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
9t^2 + 3t = 0
(3t)(3t + 1)= 0   ||The idea is that both factors must then = 0, allowing the solving for t
3t = 0,   {{{t = 0}}}
(3t + 1)= 0
 3t = -1
 {{{ t = -1/3}}}