Let x be the function from the set of real numbers to the set of real numbers defined by f(x)2=2x^3-4x+3?

Question

Then f(-a)=
a)-2a^3+4a+3
b)2a^3+4a+3
c)2a^3-4a+3
d)-2a^3+4a-3

Answer 1

a)

(-a)^3= -a^3
-4(-a)=4a

Answer 2

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Answer 3

If f(x)=2x^3-4x+3
f(-a)=-2a^3+4a+3 (answer a)

Answer 4

a