Replace f(x) and f(x+h) by using the equation given for the problem.
Open all parenthesis
Factor the h
Other terms not in the parenthesis cancel each other out
Now, simplify
F f(x) = 2x2 + 1 and g(x) = x2 – 7, find (f + g)(x).
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Replace f(x) and f(x+h) by using the equation given for the problem.
Open all parenthesis
Factor the h
Other terms not in the parenthesis cancel each other out
Now, simplify