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find the functional values requested in the problem F(x)=x^2-25t

  • math -

    if f(x) = x^2 - 25t
    f(5t) = (5t)^2 - 25t = 25t^2 - 25t

    so the second one in the same way.

    Notice we had a function of x, that is, f(x)
    so only the terms that contain x's are affected in the substitution, unless you have a typo.

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