I did not found this T on this questions, easily.

Please show me what you have tried.
Maybe with an attachment.

Hi Tayfuntan,

One source of confusion is that t and T are totally different things
T is a constant and t is a variable.
131222 Latex answer integral.JPG

I then used Wolfram Alpha calculator to solve

http://www.wolframalpha.com/input/?i=solve+%2836.4%2B6*10%5E-3T-2*10%5E5*T%5E-2%29%28T-600%29+%3D94258+over+the+real+numbers

There are 4 answers.

Melody:

Hi Tayfuntan,

One source of confusion is that t and T are totally different things
T is a constant and t is a variable.
131222 Latex answer integral.JPG

I then used Wolfram Alpha calculator to solve

http://www.wolframalpha.com/input/?i=solve+%2836.4%2B6*10%5E-3T-2*10%5E5*T%5E-2%29%28T-600%29+%3D94258+over+the+real+numbers

There are 4 answers.

i search to capital (T) T is degree of kelvin of my question.
And thank you so much for this answers, u saved healt of my mind