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Intern
Joined: 07 Jul 2005
Posts: 8
Location: Maryland
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Quadratic Equation [#permalink]
16 Jul 2005, 07:48
Okay, I will post without the answer so everyone can practice. (Will post answer later.) I apologize if I don't know the proper area of the forum for this, but I need help understanding how to set this up. So if you could all explain your logic, that would be great.
3x^2 (x-2) - x + 2 , x cannot equal 2 x - 2
Solve for x
When I work this out I get 3x^2(x-2)-x+2 on top, and the answer explanation seems to be able to cancel part of that out, which I don't understand.
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SVP
Joined: 05 Apr 2005
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Re: Quadratic Equation [#permalink]
16 Jul 2005, 19:17
w07,
this expression "[3x^2 (x-2) - x + 2]/(x - 2)" should be in equation form. otherwise value of x cannot be calculated.
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Manager
Joined: 05 May 2005
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"[3x^2 (x-2) - x + 2]/(x - 2)"= [3x^2(x-2)-(x-2)]/(x-2)=3x^2-1
does it equal 0?
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Director
Joined: 05 Jan 2005
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arrived at (3X^2 - 1)......equation needed.
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