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ninaaforever
04.04.2020 •
Mathematics
− 2 x 2 + 4 x − 1 −2x 2 +4x−1minus, 2, x, squared, plus, 4, x, minus, 1 from 6 x 2 + 3 x − 9 6x 2 +3x−96, x, squared, plus, 3, x, minus, 9.
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Ответ:
7 or more hours
15 + 15 is 30