Question

Solve x2 − 16 =0 (1 point)

1: square root 2
2: times square root 2
3: ±2
4: ±4

Answer 1

option 4

Explanation:

x² - 16 = 0 ( add 16 to both sides )

x² = 16 ( take square root of both sides )

`√(x^2)` = ±
`√(16)`

x = ± 4