Photos 2Х2 6Х

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2х2 6х. Х2+7х+6=0. Х-Х/7=6. Х+7/2х2-х-6. 7-Х2 -6х.
Х2+7х+6=0. Х-Х/7=6. Х+7/2х2-х-6. 7-Х2 -6х.

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