Images 7Х 4Х

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7х 4х. 3х²-7х+4=0. 7-Х=2. 2х/3=4/9. 2/3х^2 * 9х^4/4.
3х²-7х+4=0. 7-Х=2. 2х/3=4/9. 2/3х^2 * 9х^4/4.

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