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If f(x) = -2 and g(x)=2x²+x-3, find (f+g)(x).

User Pwes
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1 Answer

1 vote

Answer:

(f+g)(x) = 2x²+x-5

Explanation:

Given the functions f(x) and g(x) below:


\begin{gathered} f(x)=-2 \\ g(x)=2x^2+x-3 \end{gathered}

The composition, (f+g)(x) is obtained below:


\begin{gathered} (f+g)(x)=f(x)+g(x) \\ =-2+(2x^2+x-3) \\ =2x^2+x-3-2 \\ \implies(f+g)(x)=2x^2+x-5 \end{gathered}

The expression for (f+g)(x) is 2x²+x-5.

User Penartur
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