December 18, 2014

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.

Answer this Question

First Name:
School Subject:

Related Questions

Math (Dimensional Analysis) - Hi this is a dimensional analysis problem,I want ...
math - There are two machines that produce aluminum cans. The newer machine can ...
Algebra - Use P= -7200+300x-2x^2 p= profit x- selling price question: Determine ...
Math-Help please? - Michael owns 300 shares of a certain stock. Suppose the ...
chemistry - How do I solve this question using dimensional analysis? An auto ...
chemistry - What is the major difference between the two-dimensional and three- ...
Physics 30 - Would the answer to this question be total energy and momentum for ...
Chemistry - I am studying dimensional analysis right now, and I get most of it, ...
Pre-Algebra - Can someone show me how to solve this problem step by step?Here is...
Pre-Algebra - Can anyone show me step by step how to solve this problem? 26cm/s...