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13-05-2017
Mathematics

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If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?

Respuesta :

13-05-2017

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

(g-f)(x)=6x-4+x^2

(g-f)(x)=x^2+6x-4 then:

(g-f)(3)=3^2+6*3-4

(g-f)(3)=9+18-4

(g-f)(x)=23

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