For f(x) = x3 – x2, which gives an output of 48? O f(-8) O fl-4) O f(4) O f(8)

Question

For f(x) = x3 – x2, which gives an output of 48?
O f(-8)
O fl-4)
O f(4)
O f(8)

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Thu Thảo 6 months 2021-08-14T15:09:32+00:00 2 Answers 8 views 0

Answers ( )

    0
    2021-08-14T15:10:46+00:00

    f(4) gives an output of 48

    0
    2021-08-14T15:11:16+00:00

    Answer:

    f(4)

    Step-by-step explanation:

    The output is the value of f(x) for a given value of x ( the input )

    Substitute the given values of x into f(x) to determine the output, that is

    f(- 8) = (- 8)³ – (- 8)² = – 512 – 64 = – 576 ≠ 48

    f(- 4) = (- 4)³ – (- 4)² = – 64 – 16 = – 80 ≠ 48

    f(4) = 4³ – 4² = 64 – 16 = 48

    Thus f(4) gives an output of 48

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