Question

Solve x2 − 60 = 0. If necessary, round to the nearest hundredth.

±7.75
±120
3600
There is no solution as you cannot take the square root of a negative number.

Answer 1

Option A,
`x =` ±
`7.75`

Explanation:

Step 1: Add 60 to both sides

`x^2 - 60 = 0`

`x^2 - 60 + 60 = 0 + 60`

`x^2 = 60`

Step 2: Square root both sides

`√(x^2) = √(60)`

`x =` ±
`7.75`

Answer: Option A,
`x =` ±
`7.75`