evaluate the following expressions: if X= 2 then 7 X squared -5x=​

Question

evaluate the following expressions: if X= 2 then 7 X squared -5x=​

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Thu Cúc 3 years 2021-08-02T00:47:19+00:00 1 Answers 3 views 0

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  1. minhkhue
    0
    2021-08-02T00:48:45+00:00
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    Answer:

    7x^2-5x=28-10=18…..

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