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 March 2nd, 2010, 09:33 AM #1 Newbie   Joined: Mar 2010 Posts: 1 Thanks: 0 stumped 0 = 3x^2 - x
 March 2nd, 2010, 10:20 AM #2 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,963 Thanks: 1148 Math Focus: Elementary mathematics and beyond Re: stumped One solution is x = 0. If x is not zero then 0 = 3x^2 - x x = 3x^2 1 = 3x x = 1/3.
March 2nd, 2010, 10:39 AM   #3
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Re: stumped

Quote:
 Originally Posted by tangosix 0 = 3x^2 - x
Hi tangosix,

Another way to approach this exercise is to factor the quadratic side of the equation.

$3x^2-x=0$

$x(3x-1)=0$

Now, recalling the 'zero product property': If ab = 0, then a = 0 or b = 0.

$x=0 \ \ or \ \ 3x-1=0$

$x=0 \ \ or \ \ x=\frac{1}{3}$

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