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January 30, 2015

January 30, 2015

Posted by **Mike** on Monday, June 6, 2011 at 11:24pm.

- math -
**MathMate**, Tuesday, June 7, 2011 at 8:45amBreak even point is when cost equals revenue (i.e. zero profit).

So for

C(x)=R(x), we have

1000-x^3=100x-10x^2

Rearrange to give

-x^3+10x^2-100x+10x^2+1000=0

which solves easily to

x=10

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