[duhdon]

Hi there, just having a bit of trouble solving a polynomial equation... might be fairly easy but ive been looking at it for a while and Im possibly going insane... any help much appreciated, looking for steps to solving it , not just an answer thanks !!

2dT^3 + 3cT^2 + 6bT + 6a(ln(T)) - 563.628 = 0

a = 19.89
b = 5.024x10^-2
c = 1.269x10^-5
d = -11.01x10^-9

It's for calculating a temperature rise in methane gas undergoing a compression where Cp is a function of temperature.
value of T should be in the 400K region... just don't know how to go about it without using iteration technique and my calculator wont allow me to input all of these numbers... could be a long night if it comes to that. thanks again

[duhdon]

K as in units of temperature not 1000*

[steve2005]

(Original post by duhdon)
Hi there, just having a bit of trouble solving a simultaneous equation... might be fairly easy but ive been looking at it for a while and Im possibly going insane... any help much appreciated, looking for steps to solving it , not just an answer thanks !!

2dT^3 + 3cT^2 + 6bT + 6a(ln(T)) - 563.628 = 0

a = 19.89
b = 5.024x10^-2
c = 1.269x10^-5
d = -11.01x10^-9

It's for calculating a temperature rise in methane gas undergoing a compression where Cp is a function of temperature.
value of T should be in the 400K region... just don't know how to go about it without using iteration technique and my calculator wont allow me to input all of these numbers... could be a long night if it comes to that. thanks again

I can't see any simultaneous equations.

[duhdon]

MY BAD right i have gone insane so, polynomial equation solving for T

[steve2005]

(Original post by duhdon)
MY BAD right i have gone insane so, polynomial equation solving for T

I think graphing it is the way to go.




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[duhdon]

i see, thanks very much for your help !