Which expression is equivalent to the given expression? (776) (2y-4)2

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Which expression is equivalent to the given expression?
(776) (2y-4)2

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Diễm Kiều 4 years 2021-08-22T05:22:08+00:00 1 Answers 10 views 0

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  1. thienthanh
    0
    2021-08-22T05:24:04+00:00
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    Answer:

    (776) (2y-4)²

    (776) (4y²-8y-8y+16)

    (776)(4y²-16y+16)

    =3104y²-12416y+12416

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