Question

Solve quadratic equation by using square root property$y^2=144$

Short answer

The required result is$y=12or-12$

Step-by-step solution

Given Information 

The given expression is$y^2=144$

Square Root Property

If $x^2=k$and $k\ge 0$then $x=\sqrt{k}or-\sqrt{k}$

$144\ge 0$

then,

localid="1648577071869" $x=\sqrt{144}or-\sqrt{144}$

$x=12or-12$