Images Х2 Х4

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Х2 х4. 2х2+6х+7 0. Х4 + х2 — 2 = 0;. Х2=х:х. 2=(3х-5)-(7-4х).
2х2+6х+7 0. Х4 + х2 — 2 = 0;. Х2=х:х. 2=(3х-5)-(7-4х).

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