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What is $(f - g)(x)$ ? $\newline$ $f(x) = x^2 + 5x$ $\newline$ $g(x) = -3x$ $\newline$ Write your answer as a polynomial or a rational function in simplest form. $\newline$ ______

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Add and subtract functions

Full solution

Q. What is

(f - g)(x)

?

\newline

f(x) = x^2 + 5x

\newline

g(x) = -3x

\newline

Write your answer as a polynomial or a rational function in simplest form.

\newline

______

Identify Formula: Identify the formula for $(f - g)(x)$ . $(f - g)(x)$ is the difference of $f(x)$ and $g(x)$ . $(f - g)(x) = f(x) - g(x)$
Given Functions: We have: $\newline$ $f(x) = x^2 + 5x$ $\newline$ $g(x) = -3x$ $\newline$ Which function represents $(f - g)(x)$ ? $\newline$ $(f - g)(x) = f(x) - g(x)$ $\newline$ $(f - g)(x) = (x^2 + 5x) - (-3x)$
Combine Terms: We found: $\newline$ $(f - g)(x) = (x^2 + 5x) - (-3x)$ $\newline$ Express your answer as a simplified polynomial or rational function. $\newline$ Combine the like terms. $\newline$ $(f - g)(x) = x^2 + 5x + 3x$ $\newline$ $(f - g)(x) = x^2 + 8x$

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