nothanksok nothanksok

10-07-2017
Mathematics

contestada

Given that f(x)=2x^3+x-3, evaluate the function f(-2).
A.) 11
B.) -69
C.) -21

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Nick911 Nick911

10-07-2017

f(x)=2x³+x-3
f(-2)=2(-2)³+(-2)-3
f(-2)=2(-8)-2-3
f(-2)=-16-2-3
f(-2)=-18-3
f(-2)=-21. As a result,C is your final answer. Hope it help!

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10-07-2017

f(x) = 2x^3 + x - 3
f(-2) = 2(-2)^3 +(-2) -3
f(-2) = 2(-8) -2 - 3
f(-2) = - 16 - 2 - 3
f(-2) = -21

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