Algebra Examples

$| - 1 + 2 |$

Step 1

Add $- 1$ and $2$ .

$| 1 |$

Step 2

The absolute value is the distance between a number and zero. The distance between $0$ and $1$ is $1$ .

$1$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$