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(3x3 - 4x2 + x - 2) - (x3 - 5x2 + 3x + 2)
Guest Mar 3, 2012
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 #1
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=0!!!!!
Mathefreak mal pi  Mar 4, 2012
 #2
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you are really using "x" as variable and for "times"
(3x3 - 4x2 + x - 2) - (x3 - 5x2 + 3x + 2)

(3*3 - 4*2 + x - 2) - (x*3 - 5*2 + 3*x + 2)
(9 - 8 + x - 2) - (x*3 - 10 + 3*x + 2)
(x - 1) - (3*x - 8 + 3*x)
x - 1 - 3*x + 8 - 3*x
x - 6*x + 7
7-5x
admin  Mar 4, 2012

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