Algebra Examples

$r^{2} = 1$

Step 1

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

$r = \pm \sqrt{1}$

Step 2

Any root of $1$ is $1$ .

$r = \pm 1$

Step 3

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

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Step 3.1

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

$r = 1$

Step 3.2

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

$r = - 1$

Step 3.3

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

$r = 1, - 1$