What is the coefficient of x2 in the expansion of (x + 2)?? O A. 2 OB. 3 O C. 4 OD. 6

Question

What is the coefficient of x2 in the expansion of (x + 2)??
O A.
2
OB.
3
O C.
4
OD.
6

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RI SƠ 2 months 2021-07-31T02:58:05+00:00 1 Answers 2 views 0

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    0
    2021-07-31T02:59:30+00:00

    x+2 in expansion of (x+2) ?

    A

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