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Adam555

  • 4 years ago

if 2f(x) - 3f(1/x) = x^2, determine f(2) (show steps please)

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  1. kecbaaby
    • 4 years ago
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    just plug in 2 for x.

  2. Adam555
    • 4 years ago
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    its not that simple

  3. joemath314159
    • 4 years ago
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    plug in 2, then plug in 1/2, and you will have a system of equations in two unknowns, one will be f(2), the other will be f(1/2), and you can solve for f(2).

  4. joemath314159
    • 4 years ago
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    \[2f(2)-3f(\frac{1}{2})=4, -3f(2)+2f(\frac{1}{2})=\frac{1}{4} \] now we have to solve this system.

  5. joemath314159
    • 4 years ago
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    You end up with f(2)=-7/4

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