Thread: Help! Cubic equation

Hi,

0 = 2t^3 + 5t^2 - 84

t>0

i dont know how to use the cubic equation,

thanks

Moon

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