Factorize: 20 - 3p - p {2} = p - 1

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Factorize:
20 - 3p - p {2} = p - 1

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Nick 4 months 2021-08-01T14:21:33+00:00 1 Answers 6 views 0

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    2021-08-01T14:22:35+00:00

    Answer:

    20 -3p -p^2 = p- 1

    20 -3p -p = p^2 -1

    20 -4p = p^2 -1

    20 +1 = p^2 +4p

    21 = p^2 +4p

    p^2 +4p -21

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