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10-04-2018
Mathematics

contestada

(a) If f(x) = 3x
3 − 7x + 5, then f(−1) =
A. 1 B. −1 C. 9 D. 8

Respuesta :

Аноним Аноним

10-04-2018

f(x) = 3x³ - 7x + 5

f(-1) = 3(-1)³ - 7(-1) + 5
f(-1) = -3 +7 + 5
f(-1) = 9 (Answer C)

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