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 March 15th, 2013, 09:46 AM #1 Senior Member   Joined: Sep 2011 Posts: 395 Thanks: 0 Modulus Another quick question today. Can anyone help me determine which, if either, of these 2 answers to the modulus are correct? Many thanks. Q. How should I express the following? $|0-(-x^3+6x^2)|=x^3-6x^2$ or $-x^3+6x^2$
March 15th, 2013, 12:38 PM   #2
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Re: Modulus

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 Originally Posted by bilano99 Another quick question today. Can anyone help me determine which, if either, of these 2 answers to the modulus are correct? Many thanks. Q. How should I express the following? $|0-(-x^3+6x^2)|=x^3-6x^2$ or $-x^3+6x^2$
You need to divide the domain into two pieces. $x^3 - 6x^2= x^2(x-6)$. Therefore for x > 6, use x-6 factor, for x < 6, use 6-x.

 March 15th, 2013, 12:48 PM #3 Senior Member   Joined: Sep 2011 Posts: 395 Thanks: 0 Re: Modulus Ok. Thanks for checking that.

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