Simplify the expression: 9d2–7d2+4d2

Question

Simplify the expression:
9d2–7d2+4d2

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Neala 4 months 2021-08-02T14:45:55+00:00 1 Answers 0 views 0

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    2021-08-02T14:47:52+00:00

    Answer:

    9d2 – 7d2 + 4d2

    2d2 + 4d2

    6d2

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