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OpenStudy (darkigloo):
How do I solve for x? f(x) = 7 - 15x + 9x^2 - x^3 For the answer it says : -x^2+8x-7=0 (-x+7)(x-1)=0 x=7 x=1 But how did they get to that?
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OpenStudy (beccaboo333):
Hey! You might have better luck posting this in the Mathematics section. You're currently in the English section..
OpenStudy (darkigloo):
oh wow didn't realize that! :) thanks.
OpenStudy (beccaboo333):
Don't forget to close it here. I'd help if I knew how to do this.
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