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how do you get -8 out of x to the second power minus 8x-12

 Apr 14, 2016
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X^2 - (8x-12) = 0      Is that what you are asking???     If yes:

x^2 -8x +12 =  (x-6) (x-2) = 0    x = 6 or 2

 Apr 14, 2016

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