Hi, 0 = 2t^3 + 5t^2 - 84 t>0 i dont know how to use the cubic equation, thanks Moon
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Originally Posted by Moon Hoplite Hi, 0 = 2t^3 + 5t^2 - 84 t>0 i dont know how to use the cubic equation, thanks Moon You will probably have to do this numerically, Newton Raphson should find a positive root, and a bit of further checking will show that it has no other roots. CB
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