Need help with math exam question (lower paper)
Question asked by: chrisowen
Asked on: 26 Jan 2011
5x^3 + 2x^2 = 20
The ^ sign is the one standardly used to indicate a power where you can't do superscript on something like this for mathematical equations.
With this sort of question you can solve it by trial and error: you just try a number for x, put it into the equation, and keep on going until you get the answer.
Whether you can re-arrange the equation to something simpler I'm not sure.
By: knowitall
Replied at: 26 Jan 2011
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Thanks knowitall, that helps but what's the answer?!
By: chrisowen
Date of comment: Thu, Jan 27th 2011
By: chrisowen
Date of comment: Thu, Jan 27th 2011
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