Solve for l A=l^2

$A = l^{2}$

Rewrite the equation as $l^{2} = A$ .

$l^{2} = A$

Take the square root of both sides of the equation to eliminate the exponent on the left side.

$l = \pm \sqrt{A}$

The complete solution is the result of both the positive and negative portions of the solution.

First, use the positive value of the $\pm$ to find the first solution.

$l = \sqrt{A}$

Next, use the negative value of the $\pm$ to find the second solution.

$l = - \sqrt{A}$

The complete solution is the result of both the positive and negative portions of the solution.

$l = \sqrt{A}$

$l = - \sqrt{A}$

$l = \sqrt{A}$

$l = - \sqrt{A}$