Photos 2Х2 6Х

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2х2 6х. 3х-5х2-1=3х+2х2+х-6х-5х2-х. 5х+4=3(6х+5)+2. 1) Х2 = 14 – 5х. (6х²+5х+7)-(4х²+х-5).
3х-5х2-1=3х+2х2+х-6х-5х2-х. 5х+4=3(6х+5)+2. 1) Х2 = 14 – 5х. (6х²+5х+7)-(4х²+х-5).

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