Question

PLEASE HELP! i do not understand how to find the domain of this equation

Answer 1

Step 1:

In this question, we are given the following:

Step 2:

From the question, we can see that:

`\begin{gathered} f(x)=x^2\text{ + 4x + 4} \\ and \\ g(x)=x^2\text{ -2x -8} \\ We\text{ n}eed\text{ to find the value of f(x)-g(x) and } \\ \text{then, we can now find the domain of f(x) -g(x)} \end{gathered}`

Step 3:

The details of the solution are as follows:

From the calculation, we can see that the value of:

`\begin{gathered} f(x)\text{ - g(x) = 6 x + 12} \\ \text{Then,} \\ \text{The domain of f(x) -g(x) = (-}\infty,\text{ }\infty\text{ ) -- OPTION A} \end{gathered}`