# How do you solve \sqrt { p - 1} = 1?

Oct 6, 2017

$p = 2$

#### Explanation:

First, square both sides so you get rid of that annoying square root symbol:

$p - 1 = 1$

Now, simply add both sides by $1$ to get rid of that $- 1$:

$p = 2$

Oct 6, 2017

$p = 2$

#### Explanation:

To undo the square root on the left side you have to square both sides:

${\left(\sqrt{p - 1}\right)}^{2} = {\left(1\right)}^{2}$

$p - 1 = 1$

$p = 2$