Question

Solve x2 = 144.
O 72
O 12
+12
O-12

Answer 1

Choice 3

Explanation:

`√(144)` is the selected answer on the image since a squared can end up as regardlessly positive, whether it is negative or positive.

Answer 2

x = ±12

Explanation:

x^2 = 144

Take the square root of each side

sqrt(x^2) = sqrt(144)

x = ±12