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4. If f(x) = 2x + 4y and g(x) = 2x2 -3x + 6y, find g(x) – f(x)
A. 2x2 – x +10y
B. 2x2 -5x +2y
C. 2x2 +5x +10y
D. 2x-x + 2y

Respuesta :

sqdancefan

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Answer:

  B.  2x^2 -5x +2y

Step-by-step explanation:

Substitute the given expressions and collect terms.

  g(x) -f(x)

  = (2x^2 -3x +6y) -(2x +4y)

  = 2x^2 -3x +6y -2x -4y

  = 2x^2 -5x +2y . . . . . . . . . . matches choice B

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