F(x)=3x³-x²-5x+1 para f (-3) se obtiene?
a)-10 b)-20 c)22 d)42
a)-10 b)-20 c)22 d)42
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f(x)=3x³-x²-5x+1
Para f (-3) se obtiene: (reemplazamos, cuando x= -3)
f (-3) =3(-3)³ - (-3)² - 5(-3)+1
f (-3) = -81 - 9 + 15 + 1
f (-3) = -90+16
f (-3) = -76