Question

Which of these statements describes a correct method to solve the equation shown below x^2 - 9 = 16a. add 9 to both sides, then square rootb. square root both sides, then add 9c. square 16, then add 9d. subtract 9 on both sides, then square root.

Answer 1

`x^2-9=16`
`\begin{gathered} \text{add 9 to both sides} \\ x^2-9+9=16+9 \\ x^2=25 \\ \text{square root both sides} \\ x=\sqrt[]{25} \\ x=5 \end{gathered}`

The answer is A.