GRamirez98 GRamirez98
  • 19-09-2018
  • Mathematics
contestada

For f(x)=4x^2-3 and g(x)=x+1 find (f-g)(x)
Ax-4x^2-2
B4x^2-x-2
c4x^2-x-4
D4x^3-3

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sarahh13579 sarahh13579
  • 19-09-2018

So (f-g)(x) basically is a fancier way of saying f(x) - g(x).

f(x) - g(x) = (4x²-3) - (x+1)        (distribute the negative sign)

              = 4x² - 3 - x - 1       (add like terms)

              = 4x² - x - 4    (answer)

C.


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