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25-09-2018
Mathematics

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Given the function f(x)=-5x^2-2x+20 find f(3)

Respuesta :

03-10-2018

[tex]f(x)=-5x^2-2x+20\\\\f(3)\to\text{put x=3 to the equation of the function f}\\\\f(3)=-5(3^2)-2(3)+20=-5(9)-6+20=-45-6+20=-31\\\\Answer:\ f(3)=-31[/tex]

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