Mathematics

Question

Please help me I beg you substituteion with negative number & order of operations unite 2
Please help me I beg you substituteion with negative number & order of operations unite 2

1 Answer

  • Answer:

    see explanation

    Step-by-step explanation:

    (10)

    To evaluate f(- 4) substitute x = - 4 into f(x)

    f(x) = 7x - 4x + 3 = 3x + 3

    f(- 4) = 3(- 4) + 3 = - 12 + 3 = - 9

    (11)

    To evaluate f(- 2) substitute x = - 2 into f(x)

    f(- 2) = 2(- 2)² - 8 = 2(4) - 8 = 8 - 8 = 0

    (12)

    To evaluate g(- 3) substitute x = - 3 into g(x)

    g(- 3) = - 2(- 3)² + 3(- 3) = - 2(9) - 9 = - 18 - 9 = - 27

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