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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?

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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