Posted by Jose on Thursday, December 1, 2011 at 11:19pm.
if the constant is missing, there is no need to use the formula, since the equation will always factor
9t^2 - 3t = 0
3t(3t-1) = 0
t = 0 or t = 1/3
if you insist ....
a = 9, b = -3, c = 0
x = (3 ± √(9-0)/18
= (3±3)/18
= 1/3 or 0
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