rewrite the polynomial expressions (x + 4y + z)(x-7y)

Question

rewrite the polynomial expressions (x + 4y + z)(x-7y)

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RobertKer 6 months 2021-08-04T19:39:33+00:00 1 Answers 0 views 0

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    2021-08-04T19:40:49+00:00

    Answer:

    x²-3xy-28y²+xz-7yz

    Step-by-step explanation:

    • (x+4y+z)(x-7y)
    • x²-7xy+4xy-28y²+xz-7yz
    • x²-3xy-28y²+xz-7yz

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