f(x) = x + 2
g(x) = x - 4
(g•x) =?
a. 2x - 2
b. x² – 8
c. x^2 - 2x -8
d. x^2 + 2x - 8
we have that
(g•x) =g(x)*f(x)
substitute
(x-4)*(x+2)
apply distributive property
x^2+2x-4x-8
x^2-2x-8
therefore
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