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0 72 x. X2-17x+72 0 решение. X2-17x+72 равно 0. X2-17x+72 меньше 0. Х2 17х-72.
X2-17x+72 0 решение. X2-17x+72 равно 0. X2-17x+72 меньше 0. Х2 17х-72.

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