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August 31, 2015

Homework Help: Math

Posted by Kari on Thursday, November 24, 2011 at 3:49pm.

Hi this is a dimensional analysis problem,I want to solve for x.

300x^2 -16.667x^3+(-7200)=0

after getting
300x^2 -16.667x^3=7200
I really dont know what to do.

Plz help.
Math (Dimensional Analysis) - Reiny, Thursday, November 24, 2011 at 11:27am
This is very effective online webpage.
I simply entered the equation in the form

300x^2 -16.667x^3-7200 = 0

It gave my 3 real answers and the corresponding gram of
f(x) = 300x^2 -16.667x^3-7200


Hi, I know I already posted this, i already used Wolfram Alpha before, but in this case they dont show the step by step solution, so I know the answers but I dont know how to get them. I'll appreciate it if I can be told how to solve this problem.

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