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10 September, 11:15

If f (x) = - 4x^ - 6x - 1 and g (x) = - x2 - 5x + 3, find (f - g) (x).

O

A. (f - g) (x) = - 3x2 - 11x + 2

O B. (f - g) (x) = 5x2 + x + 2

O C. (f - 9) (x) = - 3x2 - x - 4

O D. (f - g) (x) = 3x2+x+4

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Answers (1)
  1. 10 September, 11:29
    0
    O C. (f - g) (x) = - 3x^2 - x - 4

    Step-by-step explanation:

    I will assume that f (x) is - 4x^2 - 6x - 1

    f (x) = - 4x^2 - 6x - 1

    g (x) = - x2 - 5x + 3

    (f - g) (x) = - 4x^2 - 6x - 1 - (-x2 - 5x + 3)

    Distribute the minus sign

    (f - g) (x) = - 4x^2 - 6x - 1 + x2 + 5x - 3

    Combine like terms

    (f - g) (x) = - 3x^2 - 1x - 4
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Home » Mathematics » If f (x) = - 4x^ - 6x - 1 and g (x) = - x2 - 5x + 3, find (f - g) (x). O A. (f - g) (x) = - 3x2 - 11x + 2 O B. (f - g) (x) = 5x2 + x + 2 O C. (f - 9) (x) = - 3x2 - x - 4 O D. (f - g) (x) = 3x2+x+4
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