Question

given $x^2 = 361$, solve the equation by inspection. use the keypad to enter your answer in the box. additional symbols can be found using the drop - down arrows at the top of the keypad. $x = \square$

Explanation:

Step1: Recall square root property

For $x^2 = a$, $x = \pm\sqrt{a}$

Step2: Calculate square root of 361

$\sqrt{361} = 19$, since $19 \times 19 = 361$

Step3: Apply sign to solution

$x = \pm 19$

Answer:

$x = 19$ or $x = -19$