Posted by **missfubu-c** on Saturday, October 13, 2012 at 10:18pm.

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

(a)F(5t)=

(b)F(6t)=

- math -
**Reiny**, Sunday, October 14, 2012 at 12:32am
a)

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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