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3х 1. -Х2-3х+1=0. У=х3 х=3 у=0. У=(Х+1)(Х+2)-(Х-1)(Х-3). 9х3.
-Х2-3х+1=0. У=х3 х=3 у=0. У=(Х+1)(Х+2)-(Х-1)(Х-3). 9х3.

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