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OpenStudy (anonymous):
Find (f + g)(x) f(x) = 3x + 9, g(x) = 5x^2
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OpenStudy (anonymous):
(f + g)(x)? or is it f(g(x))?
OpenStudy (anonymous):
if its f(g(x)) You plug in the g(x) value in all the "x" value of f(x) that is 3(5x^2) + 9 or 15x^2 + 9
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