Question

Suppose that the functions fand g are defined for all real numbers x as follows.
f(x)=x-3
g(x) = 3x+2
Write the expressions for (f-g)(x) and (f.g)(x) and evaluate (f+g)(3).
(f-g)(x) =
(ƒ⋅g)(x) =
(f+8)(3) =
09
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