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I need help in solving this equation.

Algebra
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f(x)=4^2,-1/x^2, find (-2)

Apr 22nd, 2015

Is f (x) = 4^2 - 1/x^2? Can you verify if f(x) is correct

Apr 22nd, 2015

I think an x is missing.

Apr 22nd, 2015

find f(-2)

Apr 22nd, 2015

that is ok. Is f(x) correct


Apr 22nd, 2015

4x^2-1/ x^2, find f(-2)

Apr 22nd, 2015

Is f(x) = 4x^2 - 1/x^2?

Apr 22nd, 2015

f (x) = 4x^2 - 1/x^2?

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

       = 4*4 -  ( 1/4)

      = 16 -  (1/4)

      = (16*4 -1)/4

      = 63/4

Please let me know if you have any other questions and best me if you are satisfactory.

Apr 22nd, 2015

Thanks

Apr 22nd, 2015

Do you have any questions on the problem?

Apr 22nd, 2015

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