Question

If f(x) =4x²+4x-1, find f(-½).

Answer 1

Answer:

f(x)=4x^2+4x-1

x= -1/2

f(-1/2)=4(-1/2)^2+4(-1/2)-1

=4(1/4)-2-1

=1-2-1

= -2

therefore -2 is the answer

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