I need help with b(i). Am I supposed to have an equation starting with x= ?

I have written:

9000x=96000+6x^3

x^3-1400x+15000=0

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- April 21st 2010, 04:23 AMStuck ManEquation in x
I need help with b(i). Am I supposed to have an equation starting with x= ?

I have written:

9000x=96000+6x^3

x^3-1400x+15000=0 - April 21st 2010, 04:42 AMundefined
- April 21st 2010, 05:04 AMStuck Man
Ok, thanks. I've done the next part with trial and improvement. Since the factor is an irrational number I think that would be a good choice of method?

- April 21st 2010, 05:23 AMundefined