Question

I am having alot of trouble with my math class and i would like some help.

Answer 1

`-3`

Step-by-step explanation:

Here, we want to get the value of x

We simply square both sides

Thus, we have it that:

`\begin{gathered} x^2+7\text{ = 4}^2 \\ x^2+7\text{ = 16} \\ x^2=\text{ 16-7} \\ x^2=\text{ 9} \\ x\text{ = }√(9) \\ x\text{ = }\pm3 \end{gathered}`

We select -3 as the answer here (although +3 is an option too, it is not a part of the provided options)