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7 August, 02:26

Which expression represents f (x) - g (x) ?

f (x) = 2x2 - 3x + 4

g (x) = x2 - 4x - 5

A. x2 - 7x - 1

B. x2 - 7x + 9

C. x2 + x - 1

D. x2 + x + 9

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Answers (2)
  1. 7 August, 03:20
    0
    First thing you want to do is equal the equations to each other.

    2x^2 - 3x + 4 - (x^2 - 4x - 5)

    Now all you have to do is simplify.

    X^2 - 7x - 1 (your answer is A.)
  2. 7 August, 04:44
    0
    A

    Step-by-step explanation:

    f (x) - g (x)

    Set up the expression.

    2x² - 3x + 4 - x² - 4x - 5

    Add or subtract the like terms.

    2x² - x² - 3x - 4x + 4 - 5

    x² - 7x - 1
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