chuloguitar05 chuloguitar05

12-06-2017
Mathematics

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Given the function f(x) = −5x2 − x + 20, find f(3

Respuesta :

14-06-2017

Plug 3 for x and solve:

f(3) = -5(3)^2 - 3 + 20
f(3) = -5(9) - 3 + 20
f(3) = -45 - 3 + 20
f(3) = -28

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