# Find f(x) g(x) if {eq}f(x) = 3x \text{ and } g(x) = x + 1. {/eq} {eq}A. 3x^2 + 3x \\B. 3x + 1 \\C. 4x + 1 \\D. 3x^2 + 1 {/eq}

## Question:

Find f(x) g(x) if {eq}f(x) = 3x \text{ and } g(x) = x + 1. {/eq}

{eq}A. 3x^2 + 3x \\B. 3x + 1 \\C. 4x + 1 \\D. 3x^2 + 1 {/eq}

## Multiplication of Functions:

The multiplication of functions is solved as a multiplication of algebraic expressions. In case both functions are polynomial, the principles of the distributive property will be applied to find the resulting function.

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Functions:

{eq}f\left(x\right)=3x \\ g\left(x\right)=x+1 {/eq}

Calculations:

{eq}\begin{align*} f\left(x\right) \cdot ...