Aulture Aulture

14-12-2017
Mathematics

contestada

If f(x)=2x^2-4x-3 and g(x)=2x^2-16, find f(x)+g(x)
A. 4x^2-4x+13
B. 4x^2-4x-13
C. -4x-19
D. 4x^2-4x-19

Respuesta :

budwilkins budwilkins

14-12-2017

f(x)+g(x) means to add the two functions:
f(x)+g(x) = (2x^2-4x-3) + (2x^2-16)
[tex] = 2 {x}^{2} + 2 {x}^{2} - 4x - 3 - 16 \\ = 4 {x}^{2} - 4x - 19[/tex]
So the correct answer is D.

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