What is the coefficient of x4 in the expansion of (3x + 1)?? O 315 O 945 O 105 35 O 2,835

Question

What is the coefficient of x4 in the expansion of (3x + 1)??
O 315
O 945
O 105
35
O 2,835

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Neala 4 years 2021-09-03T09:58:25+00:00 1 Answers 15 views 0

Answers ( )

  1. Helga
    0
    2021-09-03T10:00:15+00:00
    Reply

    It would be O 945 that is the answer

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