Expand & simplify (x + 10)(x + 9)

Question

Expand & simplify
(x + 10)(x + 9)

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Sigridomena 3 years 2021-08-08T10:39:13+00:00 1 Answers 14 views 0

Answers ( )

  1. thienan
    0
    2021-08-08T10:40:43+00:00
    Reply

    Answer:

    its

    x^{2} + 19x + 90

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