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6 February, 07:30

If f (x) = 4x^2+1 and g (x) = x^2-5 find (f-g) (x)

A. 3x^2+6

B. 3x^2-4

C. 5x^2-4

D. 5x^2-6

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Answers (1)
  1. 6 February, 10:44
    0
    It's A 3x^2 + 6.

    Step-by-step explanation:

    (f-g) (x) = f (x) - g (x)

    = 4x^2 + 1 - (x^2 - 5)

    = 4x^2 - x^2 + 1 + 5

    = 3x^2 + 6.
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