10. Given the function below, what is f(3)? f(x) = 2×2 – x-5

Question

10. Given the function below, what is f(3)?
f(x) = 2×2 – x-5

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Dâu 3 years 2021-08-24T03:59:48+00:00 1 Answers 9 views 0

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  1. minhkhang
    0
    2021-08-24T04:00:51+00:00
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    Answer:

    f(3) = 10

    Step-by-step explanation:

    f(3) = 2(3)^2 – (3) – 5

    f(3) = 2(9) – (3) – 5

    f(3) = 18 – 3 – 5

    f(3) = 10

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