(x-1)^4 = x^2 – 2x +7

Question

(x-1)^4 = x^2 – 2x +7

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Thu Thảo 5 years 2021-05-23T19:13:10+00:00 1 Answers 19 views 0

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  1. kimcuc
    0
    2021-05-23T19:14:12+00:00
    Reply

    1-4-2-2-7

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )