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For f(x)=2x+1 and g(x)=x^2-7, find (f+g)(x)

User Nimezzz
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1 Answer

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For this case we have the following functions:


f (x) = 2x + 1\\g (x) = x ^ 2-7

We must find the following sum of functions:

(f + g) (x)

By definition we have to:


(f + g) (x) = f (x) + g (x)\\(f + g) (x) = 2x + 1 + x ^ 2-7\\(f + g) (x) = x ^ 2 + 2x-6

So, we have to:


(f + g) (x) = x ^ 2 + 2x-6

Answer:


(f + g) (x) = x ^ 2 + 2x-6

User Sarelle
by
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