Pre-Algebra Examples

$(2 x^{2} + 1) + (x^{2} - 2 x + 1)$

Step 1

Remove parentheses.

$2 x^{2} + 1 + x^{2} - 2 x + 1$

Step 2

Add $2 x^{2}$ and $x^{2}$ .

$3 x^{2} + 1 - 2 x + 1$

Step 3

Add $1$ and $1$ .

$3 x^{2} - 2 x + 2$

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